Subscribe: DEFCON Announcements!
Added By: Feedage Forager Feedage Grade B rated
Language: English
contest  def  defcon org  defcon  hacking village  hacking  https  media  open  org  security  talks  time  village  voting 
Rate this Feed
Rate this feedRate this feedRate this feedRate this feedRate this feed
Rate this feed 1 starRate this feed 2 starRate this feed 3 starRate this feed 4 starRate this feed 5 star

Comments (0)

Feed Details and Statistics Feed Statistics
Preview: DEFCON Announcements!

DEF CON Announcements!

DEFCON is the world's largest annual hacker convention, held every year in Las Vegas, Nevada. The first DEFCON took place in June 1993. DEF CON is renowned for the "arcane arts" of drinking, socializing, debugging, and crowd control. DEFCON is what you ma

Published: Wed, 14 Feb 2018 12:08:28 -0800

Last Build Date: Wed, 14 Feb 2018 12:08:28 -0800

Copyright: ©1992-2014 DEF CON Communications, Inc. All Rights Reserved except for non-commercial educational purposes only. email if you have questions.

Dark Tangent Attends Signing Ceremony for DEF CON China [Beta]

Wed, 14 Feb 2018 12:08:27 -0800


DEF CON founder The Dark Tangent has been in Beijing finalizing the agreements for DEF CON China [Beta] - it’s already looking very exciting. As you can see in the attached pictures, the look is already starting to take shape.

The signing ceremony included a New Year’s gift of some really beautiful locks from our partners at Baidu. The locks are in an ancient style, symbolizing the long history of security and security culture.

We’re really looking forward to DEF CON China - everyone is working hard and making big plans!

To submit to the DEF CON China [Beta] CFP, check out our submissions page. Let’s make this amazing together.


Packet Hacking Village (Wall of Sheep) and Skytalks CFPs are Open!

Tue, 06 Feb 2018 14:14:11 -0800


DEF CON 26 is getting off to an early start this year, with our own Call for Everything opening in mid January. It Looks like Packet Hacking Village and Skytalks are getting an early start as well, with both opening Calls or Papers in the last week! Check em out!

Packet Hacking Village CFP

Skytalks CFP

DEF CON China [Beta] Call for Papers is Open!

Wed, 31 Jan 2018 02:20:58 -0800


The DEF CON China [Beta} Call for Papers is open! We are seeking presenters with fresh ideas and exciting research to share with the DEF CON community.

The event takes place soon – May 11-13, 2018. We are accepting and reviewing proposals on an expedited schedule, and speaking spaces are limited so please respond quickly. We are happy to work with you to perfect your proposal if it arrives in time.

The rules for submissions are explained in detail on our CFP page, The Chinese translation of these rules will be online very soon.

We look forward to your submissions!

DEF CON China [Beta] dates announced and Call for Papers opening! DEF CON 神州【Beta】日期发布及征文启事(Call For Papers)

Tue, 30 Jan 2018 11:46:44 -0800


After more than a year investigating the possibility of bringing DEF CON to China I am proud to announce that we are going to do a [Beta] event in Bejing this May 11-13th!

That means everything is on a very short schedule. This week we will be opening the CFP and launching the China [Beta] sub-site with all the information you need to know to attend or to participate. Interested in running your village, contest or event there? We can help make that happen. Want to speak? Get your materials ready!

过了一年多的深入研究,我很荣幸地宣布 DEF CON 将在五月11至13号降临神州, 在北京召开个DEF CON Beta会议 。

这意味着时间相当紧迫。 我们会在这周开启 CFP 及上传DEF CON神州[Beta]的网页。所有以各式方式 参会的资料将会那发布。欢迎各界英雄豪杰参与。若想作个village, 比赛或其他项目,我们能助你一臂之力!或想当演讲嘉宾吗?请收集好资料准备投稿吧!

Social Engineering Village Call for Papers & SECTF Regsitration are Open!

Tue, 23 Jan 2018 14:49:14 -0800


Attention Social Engineers!

The DEF CON 26 Social Engineering Village SECTF registration is live! According to the SE Village Twitter it's already got over 100 signups, so don't dally if SE is your jam.

The SE Village Call for Papers is also open! If you’ve got a dynamite talk in you for the social engineering space, you have until April 1 to get your stuff together and submit. SE Village is one of the most popular at DEF CON, so don’t delay, and bring your A game!

DEF CON Groups Year in Review

Mon, 15 Jan 2018 15:06:51 -0800


DCG Ambassador Jayson Street gives a New Year's update on what's coming up for DEF CON Groups worldwide. Sharp-eyed viewers will notice he's apparently doing this in an underground DEF CON museum. :) You can (and should) learn more at

As always, if you want that hacker-fresh feeling all year long, find a local DEF CON Group and get involved! DCGs are all over the world, Bogota to Kiev to Cape Town. Can't find one? Start one! Check out this brand new post on how to start a group!

Here it is... The Call for Everything!

Fri, 12 Jan 2018 15:59:54 -0800


Can you feel it? That electricity in the air? It’s the machinery of DEF CON 26 coming to life. The lights are blinking, the drives are spinning and the freshly oiled jaws are wide open for content.

Welcome to the Call for Everything! We’re looking for proposals in the following areas: Talks, Workshops, Villages, Contests, Events, Parties, Music, Demo Labs, Press, and Vendors!

The DEF CON 26 Call for Everything page is where to start for your assignment parameters.

A few pointers...

Early is better than perfect: If your proposal is hot but not quite there, we will work with you to get across the finish line.If you wait until the last moment, you’re kinda on your own.

Follow the guidelines: The angelic volunteers who evaluate the entries have a lot of work to do, and your courtesy in following the format makes their lives easier.

Most importantly, think big. There are a lot of security conferences, but only one of them is DEF CON. Submit accordingly.

Tor .onion Links for DEF CON Sites!

Fri, 29 Dec 2017 21:48:02 -0800


I am proud to announce the v3 .onion address for DEF CON: main web site:

Tor announced a major update to their .onion services at DEF CON 26, version 3 that greatly improves the stability and resistance of .onion sites. In order to visit a v3 .onion site you must use a newer version of Tor, or the "experimental" branch of the Tor Browser Bundle (TBB) available here [].

Read more about this next generation of onion services here []

- The Dark Tangent

Building the DEF CON CTF, Part 4!

Fri, 29 Dec 2017 00:23:14 -0800


The mighty @Vito_lbs from Legitimate Business Syndicate just published the fourth and final post of the "Building DEF CON CTF" series on the LBS blog. You should read it if you have any interest in Capture the Flag, but it's especially illuminating if you have any interest in what it takes to run the whole show.

If you think you've got a great idea for the next DEF CON CTF, you still have until the end of the year to get a proposal in to us - the info you need is at

2018 is right around the corner, people. Preparations are underway.

DEF CON In the News! Election Security Bill Introduced!

Fri, 22 Dec 2017 12:01:20 -0800


The bipartisan Election Security bill introduced in the US Senate yesterday introduces new guidelines for information sharing, cyber security guidelines and even includes a bug bounty program.

Read the full text of the proposed legislation dubbed the “Secure Elections Act”.

DEF CON 26 Hardware Hacking Village News!

Thu, 21 Dec 2017 00:51:36 -0800


Get excited, hacker family! In honor of its tenth anniversary as a DEF CON attraction, Hardware Hacking Village is retooling for DEF CON 26 with all kinds of new energy! There's a new Soldering Skills Village, a new focus for HHV Classic and tons of new resources.

We couldn't be more excited to see all the upgrades in person! Follow @DC_HHV on Twitter and check out their website for more details on all the changes coming for next year!

DEF CON 26 Homework Assignments Roll On!

Fri, 15 Dec 2017 10:34:14 -0800


We've given you a lot of reading so far, so here's an assignment that can be completed in under two hours - The 2006 Alfonso Cuarón film 'Children of Men'.

The movie fits the theme of 1983 by being a thoughtful and moving study of hope and resistance in the face of calamity and misrule. It also features a bunch of stellar performances and some crazy precision camera work (keep your eyes peeled for the long, unbroken takes).

'Children of Men' fits our theme in other ways, too - the set design could hardly be more in line with our DC26 style guide. Concrete skies, graffiti, neglected brutalist edifices everywhere - it's probably as close to a match as you're going to find so feel free to take inspiration from it.

Watch this space for more assignments!

DEF CON in the News!

Fri, 08 Dec 2017 11:21:31 -0800


The DEF CON Voting Village co-hosted an event with the University of Chicago's Harris School of Public Policy to highlight cyber vulnerabilities in our elections infrastructure. At the event, Noah Praetz, Director of Elections with the Cook County, IL Clerk's office issued "2020 Vision" a plan that details ways federal, state, and local government can work together to improve the security posture of U.S. voting infrastructure.

You can read the plan here: Security White Paper_Praetz_12062017.pdf

DEF CON in the News!

Wed, 06 Dec 2017 11:21:13 -0800


Here's the full video of a hearing of the House Subcommittee on Information Technology regarding the Cybersecurity of Voting Machines. One of the testifiers was Matt Blaze, security superhero and DEF CON Voting Village organizer. It's a good read for anyone who wants to be thoroughly grounded on the state of election security and the plan for moving forward.

"The results of the Voting Village were summarized in detail in a report. It is notable that participants, who did not have any previous special expertise in voting machines or access to any proprietary information or source code, were very quickly able to find ways to compromise every piece of equipment in the Village by the end of the weekend. Depending on the individual model of machine, participants found ways to load malicious software, gain access to administrator passwords, compromise recorded votes and audit logs, or cause equipment to fail. In most cases, these attacks could be carried out from the ordinary interfaces that are exposed to voters and precinct poll workers. The first machine was compromised by a participant within 90 minutes of the doors opening."

You can read the full report from the Voting Village.

And a transcript of Matt's remarks

DEF CON 26: The Homework Continues!

Fri, 01 Dec 2017 13:38:00 -0800


The heart of the DEF CON 26 theme is the concept of the counterfuture. The counterfuture is the open-source alternative to totalitarian dystopia; a world where we use tech and ingenuity for empowerment and connection rather than isolation and control.

In the spirit of the counterfuture, we offer book two in our pre-con homework series: ‘Cryptonomicon’ by Neal Stephenson. It’s a bit of an epic, so you’ll want to pencil in some real reading time. The story concerns two historical inflection points, WWlI and the eve of the 21st century. In both eras, Crypto and savvy are all that protect us from a spreading and despotic darkness. In both, hackers (of various kinds)are the carriers of the counterfuture.

Enjoy, and stay tuned for more assignments.

DEF CON 26 Call for CTF Organizers Reminder!

Fri, 01 Dec 2017 13:38:09 -0800


Friendly reminder to all of you Capture the Flag rock stars - there’s still time to put your stamp on the Super Bowl of CTFs at DEF CON 26!

We’re looking for a team with big ideas and the skills to execute under pressure. A team that wants to push the limits and create challenges that people talk about for years.

If that’s you, read the requirements at and get in touch. We look forward to seeing what you’ve got.

DEF CON 26: The Homework Begins!

Wed, 29 Nov 2017 23:59:34 -0800


In keeping with the DC tradition of releasing a list of books, movies and other cultural products to help you get into the headspace of our theme, we offer the first suggested reading assignment: 'Little Brother' by digital-age soothsayer and frequent DEF CON speaker Cory Doctorow.

Don't let the YA trappings trip you up - the book contains a toothsome examination and critique of the dangers of the police state and the role that hackers, makers and like-minded troublemakers can play in turning the tide.

It's also fun. Share your thoughts with us in the comments and stay tuned to this space for your next assignment.

Happy Thanksgiving from DEF CON!

Thu, 23 Nov 2017 13:02:33 -0800


DEF CON 26 Theme Announcement!

Wed, 22 Nov 2017 15:56:55 -0800


The time has come to announce the theme for DEF CON 26 - It's '1983'. Think of it as T Minus One in the countdown to 1984.
We can't wait to see how you use it.

More details here.

DEF CON in the News: Confessions of a First Time Speaker

Thu, 16 Nov 2017 11:52:20 -0800


For your Thursday enjoyment, we have a fun look into the experience of a first time speaker at DEF CON 25 this year. The take away? You won’t talk at DEF CON if you don’t pony up and submit! Spoiler Alert: Persist!

You can view the author, Jim Nitterauer’s talk regarding DNS Privacy on our YouTube channel:
DEF CON 25 - Jim Nitterauer - DNS: Devious Name Services Destroying Privacy & Anonymity w/o consent

As always, enjoy and pass it on!

Packet Hacking Village Videos Have Hit YouTube!

Thu, 16 Nov 2017 11:51:36 -0800


Our mission to monopolize your spare mind-cycles continues with 22 talks from this year’s very popular Packet Hacking Village. It’s a lot, we know, but we have faith in you. Enjoy, learn a lot of fun new network shenanigans and make sure to share what you learn.

Live now on YouTube, Main Speaking Track Talks from DEF CON 25!

Thu, 02 Nov 2017 14:48:04 -0700


Maybe don’t make a lot of weekend plans. For this Throwback Thursday is we have a playlist of 53 main track talks from DEF CON 25. No matter your interests, you’re definitely going to run out of weekend before you run out of talks to watch. (This math does make some assumptions about sleep and general life maintenance - be safe out there). Go ahead and bask in that monitor glow, get yourself some knowledge and don’t forget to pass it on.

BioHacking Village Talks are Live on YouTube!

Wed, 01 Nov 2017 12:26:03 -0700


More videos for your edification and enlightenment from the DEF CON 25 BioHacking Village. If you’ve spent any time with the BHV, you know the kind of cutting edge information they bring to the conference. If you haven’t, there’s no better time than right now. Biotech is moving fast and the singularity waits for no one.

As ever, pass it on.

Caesars Room Block expanded for DEF CON 26!

Thu, 26 Oct 2017 10:08:42 -0700


Good news, everyone! We’ve managed to get a bunch more rooms at Caesars Palace into our special rate block. If you’re planning to attend DEF CON 26 and want some of those sweet, sweet onsite lodgings at a substantial discount, the time for action is upon you.

To register at Caesars with our room rate, use the link

This link will also get you the discount at several nearby affiliated hotels. While supplies last.

The Voting Machine Hacking village talks from DEF CON 25 are on YouTube!

Thu, 19 Oct 2017 10:49:51 -0700


Hackers owning all the machines at the DEF CON 25 Voting Machine Hacking Village has gotten a lot of press, but the Village also had a roster of talks on the subject from experts like Matt Blaze and Gen. Douglas Lute. The need to reconsider the security of election systems is one of the biggest ideas to come out of DC25, and this playlist is a good way to get yourself up to speed on the state of ballot security.

Jake Braun - Securing the Election Office: A Local Response

Joseph Hall, David Jefferson - Common Misconceptions and False Parallels

Matt Blaze - How did we get here? A history of Voting Technology

Mary Brady, Josh Franklin - The State of US Voting System Security

Joseph Hall - Election Hacking: Legal Considerations from the Civil Side

Harri Hursti - Brief history of election machine hacking

General Douglas Lute - National Security Implications of Voting Attacks

Barbara Simons, David Jefferson - Election Systems: More Than the Booth

As always, pass it on. Share the knowledge.

More on the way.

ICS Village Talks from DEF CON 25 on YouTube!

Tue, 17 Oct 2017 10:15:07 -0700


Today’s DEF CON 25 videos come from the Industrial Controls Systems (ICS) Village, where we learn about the security challenges confronting the nervous system of modern life.

For the low, low price of time and attention you get:

Thomas Brandsetter - InSecurity in Building Automation

Joe Weiss - Cyber Security Issues with Level 0 through 1 Devices

Chris Sistrunk - What's the DFIRence for ICS

Bryson Bort, Atlas - Grid Insecurity and How to Really Fix This Shit

Blake Johnson Dissecting Industrial Wireless Implementations

Arnaud Soullié - Fun with Modbus 0x5a Nothing New Still Relevant?

Settle yourself in and get hip to the ICS news. Be the hit of every cocktail party with all your new ideas about DFIR and Modbus!

Pass it on and stay tuned for more.

DEF CON 25 Privacy Talks on YouTube!

Fri, 13 Oct 2017 16:23:17 -0700


Another batch of DEF CON 25 talks for your weekend perusal, this time focused on Privacy and pulled from the main speaking track at DEF CON. For those you who can’t get enough presentations on this subject, rest assured that the presentations from the DEF CON 25 Crypto and Privacy Village will follow next week.

The menu:

Cooper Quintin and Kashmir Hill - The Internet Already Knows I’m Pregnant

Jim Nitterauer - DNS: Devious Name Services Destroying Privacy & Anonymity w/o consent

Peyton Engel - Learning about Government Surveillance Software

Roger Dingledine - Next Generation Tor Onion Services

Richard Thieme - When Privacy Goes Poof! Why It's Gone and Never Coming Back

Tess Schrodinger - Total Recall Implanting Passwords in Cognitive Memory

Weston Hecker - Opt Out or Deauth Trying! AntiTracking Bots & Keystroke Injection

Block out some time, get yourself some hot cocoa and enjoy. As always, spread the love and share the content.

More to come. Stay tuned.

IoT Talk Videos from DEF CON 25!

Thu, 12 Oct 2017 16:53:55 -0700


Hacktober begins. The unleashing of the videos from DEF CON 25 has been initiated.

Today, we have a themed playlist of 15 IoT-centered videos, from the main tracks and the IoT Village alike. Prepare to have your commitment to workplace productivity tested. Enjoy them, be mentally embiggened by them, and share them widely before the DVR botnets swamp us all.

Watch this space for more playlists. It’s all happening.

Happy Hacktober to all.

C-SPAN coverage of Voting Machine Security Forum

Thu, 12 Oct 2017 16:52:33 -0700


Here's the C-SPAN coverage from the aformentioned Atlantic Council event, enjoy!

DEF CON 25 Voting Machine Hacking Village Report Released!

Tue, 10 Oct 2017 07:31:19 -0700


Today at a Washington DC event hosted by the Atlantic Council, the long-awaited DEF CON 25 Voting Village Report was released. You can even watch the presentation live on CSPAN 2 - The Dark Tangent is headlining the event!

During the weekend of DEF CON 25, every single device in the Voting Village was compromised. The report we’re releasing today gives a glimpse into how much we were able to discover in only a few days. Any committed threat actor would devote vastly more time and resources, and we believe that democratic governments must treat the security of election systems with the same rigor and investment as they do their borders.

We entered into this experiment as a non-partisan public service, believing that discussion about solutions has to start with a realistic assessment of what needs fixing. The DEF CON community has a lot of talent in that kind of work, and we saw a way we could contribute.

We would like to thank everyone who joined us in the Voting Village to test the machines, everyone who collaborated on the report, the Atlantic Council for helping us share the results and the Library of Congress for granting an easement of the DMCA provisions that would have blocked this research. This project is a great example of government making room for independent researchers to bring their talents to an issue that matters to all of us. Here’s hoping there will be more success stories like this one.

LegitBS Blog on Running CTF for DEF CON!

Sat, 07 Oct 2017 19:31:58 -0700


Vito from the Legitimate Business Syndicate has started blogging about the experience of running the past five (stellar) DEF CON CTF Contests.

Recommended read for anyone interested in CTF, especially anyone considering responding to our call for CTF Organizers. LBS is top-shelf, and if you’re going to learn, they’re the kind of teachers you want.

DEF CON Capture the Flag Call for Organizers!

Tue, 03 Oct 2017 09:17:14 -0700


After five years of exemplary stewardship of the DEF CON CTF, the shadowy masterminds of the Legitimate Business Syndicate are ready to retire to the shore house. However, whenever life closes a door, hackers jimmy open a window. LegitBS will be missed, but for someone out there a giant opportunity has just opened up.

We know some of you have genius ideas for making your own mark on the world’s premiere CTF competition, we want your proposal. In return for your fresh blood and fanatical devotion, we offer eternal geek glory and a place in the pantheon next to LegitBS, DDTEK, Kenshoto and the all theheroes who have made this contest their own.

There’s a lot you’ll need to know to submit, and you can read all about it on our CTFCFO page.

For inspiration, check out this Mega-panel of previous CTF organizers from DEF CONs past, courtesy of DEF CON 25.

If you’re ready to graduate from the combat arena to the control room, get your ideas together and let’s make some magic. Valhalla awaits.

DEF CON in the news: High Sierra edition

Wed, 27 Sep 2017 01:33:14 -0700


Frequent DEF CON speaker and OSX security guru Patrick Wardle drops some 0day on the eve of Apple’s macOS rollout. 0day with plaintext password exfiltration.

A little more of Patrick’s excellent work from DEF CON 25 - his presentation on OSX Fruitfly.

DEF CON 25 News Roundup: Voting Machines Edition

Thu, 21 Sep 2017 11:56:18 -0700


The #votingvillage we introduced at DEF CON 25 is still in the News - mainly because it’s being cited as one of the driving forces behind a growing shift in attitudes about the security of ballot machines.

In Virginia, the State Board of Elections voted to decertify it’s touchscreen voting machines in time for the November gubernatorial election, and one of the reasons given was the discoveries at DEF CON. We’re hoping for increased focus on security and accountability in our voting systems, and we are pleased to see the subject getting broader attention.

There’s also a very informative episode about DEF CON by the fine people who do all the ‘How Stuff Works’ podcasts. The first half is devoted to a thorough explanation of DC history and the second half is an interview with the wonderful Shannon Morse (@Snubs) about her experiences there as a human and in her professional capacities as a vendor and journalist. It’s from their TechStuff series and it’s worth a listen, especially if you’re new to the community.

The DEF CON 25 Soundtrack Raises Funds for the EFF!

Tue, 05 Sep 2017 19:14:00 -0700


In case you didn't know, the DEF CON 25 Soundtrack is available on Bandcamp as a 'pay-what-you-want' item. All proceeds go directly to keep the exemplary humans at the EFF fighting for the users. So for a modest donation you get dope music from DC25 performers and that warm feeling that only comes from selfless do-goodery.

The DEF CON A&E Team also auctioned off an artist badge for $321. Add that to the current Bandcamp sales of $423.37 and our donation match and you get a current payout to EFF of $1506.

"But the EFF does so much!" you say. "Surely I can still contribute to push that number higher?"

To which we respond, "Yes. Yes you can."

Click that link. Get some tunes. Relive the sounds of DEF CON 25 and toss a little change in the bucket to help the EFF keep cyberspace free.

Do it today, and then make sure to pass it on.

Early Release Video: Patrick Wardle's "Offensive Malware Analysis"

Sat, 02 Sep 2017 11:58:07 -0700


Ease into your weekend with another DEF CON 25 early release video! This time it's Patrick Wardle's presentation "Offensive Malware Analysis: Dissecting OSX FruitFly via a Custom C&C Server". It's a quick talk, but there's lots to chew on here.

As always, enjoy and pass it on.

Cyber Grand Challenge Analysis from DEF CON 24

Fri, 01 Sep 2017 10:16:14 -0700


Take a deep dive into the DEF CON 24 Cyber Grand Challenge with this video from DARPAtv, because what's cooler than autonomous supercomputers battling for supremacy? Clear a little time (it's a bit over 2 hours of analysis) and get yourself educated.

Early Release Video - DC to DEF CON

Mon, 28 Aug 2017 11:30:12 -0700


Now we take you way back to July 2017 for a leisurely Q&A with two impressively clued-in congresspeople; Rep. James Langevin from Rhode Island and Rep. Will Hurd from Texas.

Ever wondered if there was such thing as a “hacker-friendly” member of Congress? We found some and convinced them to come to DEF CON so you can meet them too! In this first-of-its-kind DEF CON session, two of the most hacker-friendly Congress critters will join DEF CON for an engaging and interactive session with the security research community.

Join the Atlantic Council’s Cyber Statecraft Initiative for a candid discussion with Representatives Will Hurd (R-TX) and James Langevin (D-RI). The two Congressmen share their thoughts on the latest developments in cybersecurity policymaking on the Hill, exchange ideas, and maybe even answer some of the Congressmen’s questions.

As always, enjoy and pass it on.

Early Release Videos: Plore - Popping a Smart Gun, & Max Bazaliy - Jailbreaking Apple Watch

Wed, 16 Aug 2017 13:36:24 -0700



Another couple of DEF CON 25 early release videos to brighten up your midweek, in which Plore shows you how 15 bucks and some hacker ingenuity can turn a fancy smart gun back into a regular old dumb gun.

We also have Max Bazaliy's brief but info-dense presentation about the Apple Watch. Max walks through the Watch's vulnerabilities and methods of exploitation and closes with a demo of a jailbreak.

As always, enjoy and pass it on.

Press from DEF CON 25!

Tue, 15 Aug 2017 08:50:10 -0700


The press archive from DEF CON 25 is up for perusal at your leisure. We'll keep adding to it as we find more related stories, and we encourage you to share stories if you find ones we missed.

Caesars Rooms Going Fast for DEF CON 26!

Fri, 11 Aug 2017 19:15:01 -0700


We don't usually make this announcement anywhere near this early in the pre-con season, but the DEF CON room block for DC26 is already about half-full. Crazy, right?  

Those of you interested in the reduced rates we get at the con-affiliated hotels can slide over to for the most current info, and keep an eye out for any updates, should more rooms become available.

Current Prices:

Harrahs: $64 Sun-Thur, $94 Fri-Sat, $15 resort fee
Ballys: $84 Sun-Thur, $127 Fri-Sat, $19 resort fee
Caesars: $151 Sun-Thur, $171 Fri-Sat, $22 resort fee
Flamingo: $87 Sun-Thur, $127 Fri-Sat, $17 resort fee
Linq: $69 Sun-Thur, $99 Fri-Sat, $17 resort fee
Paris: $133 Sun-Thur, $156 Fri-Sat, $19 resort fee

Complimentary self and valet parking at all properties!

Media Server Treats: Updated Materials and Film Contest Video!

Thu, 10 Aug 2017 17:40:07 -0700


More goodies for you on the DEF CON Media Server. The #DEFCON presentations and workshop materials have been updated and the torrents have been regenerated. The old ones are officially deprecated.

The films from the T.D. Francis X-Hour Film Contest, including the winner, are also there for your viewing pleasure.

Enjoy, and pass it on!

Another DEF CON 25 Early Release Video: Open Source Safe Cracking Robots with Nathan Seidle

Wed, 09 Aug 2017 10:00:02 -0700


Settle in and watch a $200 open source robot crack a combination safe. Learn how and why, sure, but also watch a robot crack a safe.

Early release Video! Elie Bursztein - How We Created the First SHA 1 Collision

Mon, 07 Aug 2017 14:43:38 -0700


Today we bring you another Early Release Talk from DEF CON 25! This time it's a more nuts-and-bolts crypto talk about the creation of the first SHA-1 collision. In this talk, Elie Bursztein delves into the challenges faced from developing a meaningful payload, to scaling the computation to that massive scale, to solving unexpected cryptanalytic challenges.

As ever, enjoy and share the love. Pass it on.

Media Server Treats: Capture the Flag Edition!

Sun, 06 Aug 2017 14:17:23 -0700


More goodies from DEF CON 25 have arrived on the Media Server! This time it's vast quantities of Infoz from the CTF competition. We've got results, services, scorebots and captures, all lovingly hand-compressed by DT for maximum potency. Please enjoy the caps in both team and organizer flavors.

In addition to the individual files in the CTF folder, we have prepared the whole enchilada in handy torrent format. As always, seeding is greatly appreciated. The data must flow.

Media Server Treats: Closing Ceremonies Slideshow Photos are Live!

Sat, 05 Aug 2017 10:26:23 -0700


Population of the DEF CON Media Server with DC25 goodies continues: the pictures from the closing ceremonies slide show are now live. Stay tuned - the entire output of the DEF CON Photo Corps will be available for slurpage in handy torrent format soon. Pictures, PCAPs, videos - maybe crack open a fresh hard drive and settle in. The data will flow.

Early Release Video from DEF CON 25!

Sat, 05 Aug 2017 02:15:43 -0700


Early release video from DEF CON 25 - Garry Kasparov's presentation 'The Brain's Last Stand'. As always, enjoy and make sure to pass it on!

Contest Results from DEF CON 25!

Thu, 03 Aug 2017 02:40:30 -0700


Congratulations to this year's contest winners! The level of competition at DEF CON is serious, whether it's the DC CTF or the Tin Foil Hat Contest, there are many very clever, very resourceful humans vying for the honors, and we salute you.

The contest results page represents the current state of our knowledge. We'll update as additional info comes in - do not despair if you don't see the event you're looking for just yet.

We also salute all those who competed but did not taste victory this year. The distance between observer and competitor is much greater than the one between competitor and victor, and DEF CON 26 will be here sooner than you know.

Receipts, Presentations, and More, on!

Wed, 02 Aug 2017 11:21:58 -0700


This year, you'll find all that juicy data on the DEF CON media server ( and you can connect at your leisure and leech to your heart's content with no silly plastic doodads to hunt down of when you're loading out your hotel room.

Anything you might have formerly found on the Con CD, as well as anything we post in the future in the way of Video, Audio, and updates to presentations will be there, so keep your eyes peeled!

DEF CON 25 Receipt

Torrents for Presentation and Workshop Materials: CON 25/DEF CON 25 presentations.torrent CON 25/DEF CON 25 workshops.torrent

Nice Truck, Car Hacking Village Winners!

Tue, 01 Aug 2017 18:00:58 -0700


Yep. They won the Car Hacking Village CTF, so they won a tricked out truck. To hack or to cruise in, at their discretion. You can find out more about the contest and the other goings on at the DCCHV at

Congrats DEF CON 25 CTF Winners, PPP!

Tue, 01 Aug 2017 02:20:55 -0700


Congratulations to Plaid Parliament of Pwning for their historic win at this year's CTF and a heartfelt thank you to the stand-up folks at Legitimate Business Syndicate for five years of fantastic contests.

You can read the final scores and sift through all their juicy data on the LBS blog:

Thanks for a Great DEF CON 25!

Tue, 01 Aug 2017 02:16:21 -0700


Another DEF CON is in the books. 25 years, and still exciting and expanding. Still staffed and attended by a community of volunteers and enthusiasts who are passionate about improving our shared digital world. You can't really ask for a better anniversary present than that.

Thanks to everyone who brought their energy and curiosity to Caesars this year, to every one of you who took the time to teach something, to every one who brought something to share, and to everyone who made it easy for people new to the scene to find a home.

We hope to see all of you back at Caesars for DEF CON 26! We're gonna get on planning that the minute the dust is cleared from this one. Stay tuned for content updates, contest results and the rest of the press coverage.

As always, we are insanely proud of the DEF CON community.

We love you, and we look forward to doing all this with you again soon.

Mid-Con Press Roundup

Sat, 29 Jul 2017 13:07:36 -0700


DEF CON marches on, Thursday and Friday are in the books. Caesars is still here, Vegas is still hot. For the curious, here's a sampling of the press from DC25 so far, to give you an idea what the world outside this casino is thinking about our beloved hacker party.

Cnet - Everything looks like a hack when you're paranoid at DEF CON.
Cnet does a good job of reminding everyone to take a deep breath and carry on.

Kasparov talks calculated odds, AI, and cybersecurity
Cool Q&A with the brilliant and highly entertaining Kasparov.

It's shockingly easy for hackers to remotely scan and clone your work security badge

Why DEF CON still matters 25 years later
Well, technically 24 years later. But we're glad to still matter.

The First Apple Watch Jailbreak Has Been Demonstrated At Def Con 25

Hackers Will Be Breaking Into Voting Machines This Weekend

Watch this space for more press reaction to DEF CON 25.

#VotingVillage is a Hit!

Fri, 28 Jul 2017 16:08:47 -0700


For a rookie, the Voting Machine Hacking Village is off to a very impressive start: consider the following tweets:

90 min after doors open: Complete remote control on the operating system level of the Winvote voting terminal (including election data).

On the e-pollbook front: internal data structure already discovered and reverse engineered within an hour. #VotingVillage

The Voting Village has a bunch of machine makes and models to try your hand at, including Sequoia AVC Edge, ES&S iVotronic, Diebold TSX, Winvote, and Diebold Expresspoll 4000. More importantly, there's a chance to make a little history here. The integrity of voting systems is a live issue in the world's news, and there are a lot of eyes on our little experiment. If your idea of fun includes a little paradigm-shifting, the VotingVillage is open all DEF CON.

In Memoriam, the DEF CON Conference CD

Thu, 27 Jul 2017 00:23:04 -0700


Let's face it: this change has been looming on the horizon for a long time. When we started putting a compact disc full of slide decks and files into the DEF CON goodie bag, it was a perfectly good idea. In those days, 750 megabytes was a decent amount of storage. More importantly, optical discs were still a thing. Readers shipped with all the computers and we all had cool CD wallets and racks and whatnot.

The world has changed, and CDs are now a weird novelty item from the hazy past like Pet Rocks and Cassingles.

This year, you'll find all that juicy data on the DEF CON media server ( and you can connect at your leisure and leech to your heart's content with no silly plastic doodads to hunt down of when you're loading out your hotel room.

We will miss the Conference CD. We had good times together. We will toast to your memory, and pour out a little data in your honor. See you on the flip side, old friend.

Torrents for Presentation and Workshop Materials: CON 25/DEF CON 25 presentations.torrent CON 25/DEF CON 25 workshops.torrent

DEFCON 25 Pre-con Link Roundup

Thu, 27 Jul 2017 00:21:40 -0700


It’s very nearly on, DEF CON fam! As many of you are already in the city getting situated, here’s a few helpful links to get your mind right for the impending festivities.

Parking information: Vegas parking is a little different every year - here’s the thread about it on the DEF CON forums.

For that matter, you can use the DEF CON forums to check out information about any of the stuff going on here.

In case you didn’t know, there’s an official app for DEF CON called HackerTracker, available in iOS and Android flavors. Open source and created with love by members of the community, and full of stuff like maps and schedules to help you navigate.

For those of you in Paris and Bally’s, good news! You get DEF CON TV! 4 channels, no waiting.

For the latest in presentation info and such, hit up the DC25-specific media server at on the internal DEF CON 25 network.

To keep up to date on the latest of the late-breaking news, follow the main twitter feed @defcon, the DEF CON info booth @dcib and Pictures and such also going up at @wearedefcon on Instagram.

And most importantly, registration opens Thursday at 6am. See you there!

Announcing the DEF CON 25 Official Soundtrack

Wed, 26 Jul 2017 14:50:32 -0700


The Official DEF CON soundrack has dropped! If you're here in Vegas, you'll get it on a CD with your registration pack, but if not, fear not, you can have it too!

14 tracks of hacker-centric tunes by so many fantastic artists, like:

Skittish and Bus, Laughing Mantis, Information Society, Zebbler Encanti Experience, JG And The Robots, Bioassay, Moderns, Left-Right, Ninjula, Richard Cheese and Lounge Against The Machine, The TroubleShooters, MC Frontalot, Lavos, Dual Core

It's available for free on in a handy torrent, or if you're feeling benevolent, in a pay what you want format to benefit the EFF.

WiFi Reg at DEF CON 25 Now Open!

Tue, 25 Jul 2017 19:33:57 -0700


Interested in using the DEF CON secure wifi onsite? The online registration is open now. The setup page is You can keep up with the people running that service by following @DEFCON_NOC.

HackerTracker is Live in the App Store!

Sun, 23 Jul 2017 11:27:53 -0700


The wait is over!

The iOS version of HackerTracker is available on the AppStore!. It's free, slick and courtesy of @sethlaw, @Chrismays94, @macerameg & @imachumphries. Thanks to all of them for delivering the goods on time!

Friends of Bill W. at DEF CON 25

Fri, 21 Jul 2017 09:02:31 -0700


Vegas is a lot of fun, but it can also be just a lot. Too much, even, if you’re trying to keep the horizon level in your windscreen. If you’re a friend of Bill W joining us for DEF CON 25, please know that we have meetings at noon and five p.m., Thursday through Sunday in “Office 4A”, on the promenade level. Drop by if you need to touch base or just want a moment of serenity. We’ll be there.

(See info booth next to office 4 on the map, if you’re having trouble finding “Office 4A”)

DEF CON 25 Data Duplication Village!

Wed, 19 Jul 2017 21:33:14 -0700


Data Duplication Village is back for DEF CON 25, so don't forget to bring up to 3 6TB drives if you want to download the whole enchilada. This year's goodies are:

6TB drive 1-3: Updated archive of plus other "direct from DT" content

6TB drive 2-3: hash tables (#1-2)

6TB drive 3-3: GSM A5/1 hash tables plus remaining data (#2-2)

There's a handy schedule to follow and you can drop off and pick up just like dry cleaning.

For more info you can check out and the forum thread

DEF CON 25 Entertainment Lineup!

Wed, 19 Jul 2017 13:45:55 -0700


Curious who's gonna be rocking the house in the wee hours of DEF CON 25? Here's a handy guide to the MainStage performers for all three nights! Enjoy, plot your entertainment journey and pass it on.

Just a little over a week! W00T!

*Richard Cheese and Lounge Against the Machine are performing in the Chill-Out Area, the rest of these performers are on the main stage.

Full-spectrum psychedelic bassquake - ZEE is back!

Mon, 17 Jul 2017 10:23:00 -0700


Saturday Night, y'all!

Zebbler Encanti Experience (aka “ZEE”) is what happens when Pixel Wizard and Techno Badger meet in the woods and decide to short circuit neural pathways of the nearby mushroom pickers with nothing short of bassquakes (9.0 on the scale of awesome) and complete visual reality replacement (somewhat too awesome and terrifying to be numbered anything in particular).

That historic meeting in the woods is the underpinning of the very garments that ZEE now wear at every event they perform. The mere loosening of a button of their coats' pockets opens up a wormhole of psychedelic visions and sub-sonic rattles. But Zebbler Encanti Experience do more than that. They open their minds fully to each and every dance floor and ask you to Get In There!

Richard Cheese and Lounge Against the Machine are BACK for DEF CON 25!

Tue, 18 Jul 2017 07:56:25 -0700


Friday, in the Chillout area, please to enjoy the nearly-too-swanky-to-function  sounds of returning DEF CON performers (and DEF CON Soundtrack contributors!) Richard Cheese and Lounge Against the Machine!

America's loudest lounge singer Richard Cheese performs swingin' Vegas versions of rock and rap songs, "swankifying" popular Top40 hits into retro vocal standards. Imagine Sinatra singing Radiohead, and you've got Richard Cheese & Lounge Against The Machine.

The aforementioned DEF CON soundtrack is included with admission at DEF CON 25 or by donating to the EFF (url coming soon).

DEF CON 25 Friday Headliner: Reel Big Fish!

Fri, 14 Jul 2017 16:46:52 -0700


For your DEF CON After Dark enjoyment, we present Friday's headliners, Reel Big Fish! They're fresh from their Beer Run Tour and ready to bring their trademark SoCal skank to the DEF CON masses.

In case you're not familiar, a bio snippet: "Reel Big Fish were one of the legions of Southern California ska-punk bands to edge into the mainstream following the mid-'90s success of No Doubt and Sublime. Like most of their peers, they were distinguished by their hyperkinetic stage shows, juvenile humor, ironic covers of new wave pop songs, and metallic shards of ska."

Sounds fun, yes? Yes.

DEF CON 25 Village Spotlight: ICS VIllage

Fri, 14 Jul 2017 02:02:42 -0700


A small group of SCADA Ninjas are traveling around the globe, spreading the word of SCADA. Unless you are already operating a secret nuclear enrichment facility in your basement or an ACME factory production line, then this is your best chance to get a kick-start into the world of Industrial Control Systems. We are bringing a number of real-world industrial devices from different vendors for you to look, feel and mess around with.

We bring you a safe, yet realistic environment where you can learn on how to assess, enhance, and defend your Industrial Environment. We bring you real components such as Programmable Logic Controllers (PLC), Human Machine Interfaces (HMI), Remote Telemetry Units (RTU), Actuators, etc. to simulate a realistic environment by using commonly components throughout different industrial sectors.

You will be able to connect your machine towards the different industrial components and networks and try to assess these ICS devices with common security scanners, network sniffers to sniff the industrial traffic, and more! In addition to previous years there is a workshop dedicated to ICS 101 and 201. Afterwards there will be an additional but optional challenge to test your newly acquired skills.

Follow @ICS_Village or have a look at

New for DEF CON 25: Voting Machine Hacking Village!

Tue, 11 Jul 2017 09:53:48 -0700


"Just like everything else, it's time for hackers to come in and tell you what's possible and what's not."

-The Dark Tangent

Judging from the headlines, it's a good time to figure out how secure our electronic voting machines are. What better way, we thought, to find out what's real and what's hype than getting a bunch of real voting machines into the hands of thousands of hackers? We happen to know where to find a lot of hackers onthe last weekend in July, so we created the Voting Machine Hacking Village. We're bringing a bunch of voting machines and encouraging people to see what's possible. Let's test the physical security, try attacks at a distance, dump the BIOS, all of it. Knowing is half the battle, people. Let's do our part to add to the base of knowledge.

Read all about it:

Voting Machine Hacking Village on the DEF CON Forums

DEF CON 25 Schedule is Live!

Sun, 09 Jul 2017 21:15:52 -0700


The DEF CON 25 Speaker Schedule is now LIVE! Please consult this schedule for all of your planning needs. For those of you who like to maximize efficiency, it can be paired with a venue map for optimal route planning and GPS programming.

We don't know about you, but we're getting pretty excited about this thing.

Web version:

PDF version:

Lawyer Meetup at DEF CON 25!

Fri, 07 Jul 2017 17:11:48 -0700


Attention all lawyers, law students, and judges: The DEF CON Lawyer Meetup is BACK! We'll be meeting Saturday the 29th at 6pm in the Counsel Boardroom on the Promenade Level. Join us for conversation and merriment, followed by dinner for those interested in extending the experience.

See you there!

Important Call for Parties Update!

Thu, 06 Jul 2017 20:15:28 -0700


Luxury problem: It turns out that we have a little more free night-time space than we anticipated.

Luxury solution: Turn it over to DEF CON community for some more parties. Got an idea for a fun, open-to-everyone party you’d like to throw? Get at us at right away. We’ll work with the best ideas to allocate floor space and get the party launched.

You have your assignment. We look forward to your kick-butt ideas.

DEF CON 25 Demo Labs are Live!

Thu, 06 Jul 2017 12:57:04 -0700


DEF CON Demo Labs are back, and everything you need to know about them is waiting for you at the DEMO Labs Page! It's a heavy lineup of cool, open tools for all kinds of audiences, from testers to defenders to crypto enthusiasts. Bring your curiosity and questions and let's see what grows out of the interaction!

Workshops Reg Opens July 5th!

Tue, 04 Jul 2017 13:50:24 -0700


As hard as it might be to believe, we are less than a month away from DEF CON 25 - can you feel it in the air?

For those of you who are interested in the Workshops, we have some registration info. Online registration for workshops opens July 5 at 3pm PDT. First come, first served, so bookmark and set an alarm.

See you soon!

Meet the CFP Review Board!

Fri, 30 Jun 2017 02:37:40 -0700


Meet the team of renegade super geniuses that work for months to pick the best talks for DEF CON. We love them, and you should too. It's a crazy hard job reviewing hundreds of highly technical proposals, providing meaningful feedback and picking the best ones. This year they'll be rocking special CFP Review Board badges at DEF CON, so if you see them let them know we appreciate what they do.

The Speaker List is Complete!

Fri, 23 Jun 2017 00:44:12 -0700


You know how we know it’s almost DEF CON? The Southwest is having a heat wave, that ancient tweet about the Feds (allegedly) not appreciating the ‘Spot the Fed’ contest is back and the interwebz are buzzing with burner phone chat.

Also, the speaker list is complete! Get yourself over to the speaker page and learn what wondrous presentations DEF CON 25 has in store for you! We think it’s gonna be a great year, and we want to thank everyone who submitted, both selected and not.

Extra special shout out to the unsung heroes of the CFP Selection team, who labor mightily to pull together the best possible lineup,  and to provide the kind of feedback that makes everyone better.

Check out the lineup, plan accordingly, and go ahead and get psyched. DEF CON approaches.

Workshops are Live!

Sun, 02 Jul 2017 15:46:26 -0700

DEF CON Workshops are GO! Get yourself over to the DC25 website and see what strikes your fancy!

Registration opens July 5.

A DEF CON 25 Announcement

Thu, 15 Jun 2017 14:21:34 -0700


No DEF CON 25 Mystery Challenge or badge contest.

Curious Codes, the company that was designing the DEF CON 25 badges,
notified us they are no longer working on any challenges or badges for DEF

A combination of design and planning delays combined with a last minute
unforeseen personal circumstance made their production impossible.

No special badges or challenge and no mystery challenge

We've gone with a DEF CON 25 anniversary theme with the badges and have
worked around the clock to get them designed and ordered. Not to fear, we
are hackers, it will work out. Everyone will have badges, they just won't
have crypto, secret embedded robotics, or radioactive compounds. I'll talk
more about the joy of conference badges in a later post.

Yes, L0st had planned to do a special DC 25 challenge to break everyone's

Stay tuned for more info on #badgelife, we are planning a badge meet up for
all those who enjoy building and collecting conference or contest specific
badges of all kinds.

Village Spotlight - Crypto and Privacy Village Edition!

Thu, 15 Jun 2017 01:44:40 -0700


Privacy is important to everyone, both in terms of the abstract legal right to secure our information and the concrete availability of tools and means to keep that data secure. In this age of near-ubiquitous surveillance, it's a good idea to keep your security knowledge sharp.

To that end, the Crypto and Privacy Village is back with a full roster of presentations, contests and workshops to level up your privacy game. Follow them @cryptovillage, or get the full rundown at

Better Know a Contest: Hair Farmer Edition!

Thu, 15 Jun 2017 01:43:20 -0700


The DEF CON Beard and Mustache Contest is back - time to break out the various oils, waxes and industrial fertilizers that keep you looking so profoundly beardy. There are prizes to be won! Join us at 'the intersection of facial hair and hacker culture'.

You can learn the rules and whatnot at the contest website, and you can follow the contest on the Twitters @dcbeard contest.

Beardless, but interested in competing? Please know that there is a freestyle category that actively encourages the creation and display of faux, ersatz and/or fictive facial hair arrangements. Fanciful and improbable designs welcome.

DEF CON 25 Contest Update! SOHOpelessly Broken Router List Released!

Sun, 11 Jun 2017 10:25:29 -0700


The 0Day Device List is now LIVE! Dig into these IoT devices and then demonstrate your exploits at the IoT Village for cool prizes and raucous applause!

Village Spotlight: Packet Hacking Village

Sun, 11 Jun 2017 10:24:05 -0700


Once upon a time, the Wall of Sheep was mostly a bunch of paper plates stapled to a wall, shaming DEF CON attendees for bad security practices. It has grown into a whole village full of packet shenanigans with its own speaker track, contests and even workshops.

There’s loads of information on their, including the speakers they’ve so far selected for DC25. There’s a lot to take in, so it pays to get familiar in advance. The Packet Hacking Village has enough going on to satisfy all packet ninjas, from Padawan to full-blown Jedi. Visit their site, follow them on Twitter @wallofsheep and get your chops in order. The mischief starts next month.

'Better Know a Contest’: Crash and Compile Edition

Tue, 06 Jun 2017 15:56:27 -0700


Crash and Compile is part drinking game, part programming contest. The ratio, of course, is yours to determine, but there are prizes for both the solving of programming problems and the drinking of drinks.

There are more rules than this,naturally, and you can find them at They are the kind of rules that go like this: something happens, people take a drink. Also something doesn’t happen, or fails to happen as expected, and people take a drink. You get the picture, we think.

There are also ways to participate if you want to code without the drinking, or drink without the coding, or just distract the people trying to do both.There are prizes, and booze, and the satisfaction of proving that your skills can’t be thwarted by a little casual imbibing.

Follow the organizers on Twitter @crashandcompile and if this seems like your kind of party, get started on the training montage. We’ll see you there!

DEF CON 20 Documentary on USB with updated material!

Tue, 06 Jun 2017 12:22:00 -0700


Still working on convincing someone you like to come with you to DEF CON? Sharing the essence of something as big and complex as DC isn't easy. We've got your back.

This sleek little USB key contains enough info to give a taste of DEF CON's magic. You get:

Jason Scott's terrific DEF CON documentary and a ton of out takes and soundtrack tunes
Videos of DC 20's Hacker Jeopardy and Hacker Pyramid
Music from the artists that played DEF CON 20 Pictures from all over DC20
All the DEF CON programs in PDF format
All the entries from the DC20 Short Story Contest.

When your hand your friend this little bundle of goodies, you're giving them all the data they need to get a real feel for DEF CON. Cool, right?

DEF CON 25 Speaker round 2!

Sat, 03 Jun 2017 09:50:49 -0700

Round 2 of the DEF CON 25 Speaker Selections is LIVE! Get into our speaker page and soak in all the updates. Clear some space in the old noggin for the science we're gonna drop in there. Visualize your ideal route. BITSInject Dor Azouri How We Created The First SHA-1 Collision And What It Means For Hash Security Elie Bursztein Abusing Certificate Transparency Logs Hanno Böck Breaking the x86 Instruction Set Christopher Domas Secure Tokin' and Doobiekeys: How To Roll Your Own Counterfeit Hardware Security Devices Joe FitzPatrick & Michael Leibowitz MEATPISTOL, A Modular Malware Implant Framework FuzzyNop & ceyx Radio Exploitation 101: Characterizing, Contextualizing, and Applying Wireless Attack Methods Matt Knight & Marc Newlin Cisco Catalyst Exploitation Artem Kondratenko "Tick, Tick, Tick. Boom! You're Dead." — Tech & the FTC Whitney Merrill & Terrell McSweeny An ACE Up the Sleeve: Designing Active Directory DACL Backdoors Andy Robbins & Will Schroeder Man in the NFC Haoqi Shan & Jian Yuan Porosity: A Decompiler For Blockchain-Based Smart Contracts Bytecode Matt Suiche A New Era of SSRF - Exploiting URL Parser in Trending Programming Languages! Orange Tsai Assembly Language is Too High Level XlogicX Most importantly, get amped! It's next month, people! More speaker updates to come.[...]

DEF CON 25 Sticker Packs now Available!

Thu, 01 Jun 2017 00:24:10 -0700


Got a device with visibly unadorned surface area? Don't worry - DEF CON is here to help you do the right thing. Hide your laptop's shiny silver shame with our stylish, durable DEF CON 25 stickers! There's five in the pack: you get a DC25 logo and four variations of our popular 'Disobey' sticker.

It's almost summer here in the Northern Hemisphere - make sure your gadgets are beach-ready. Get these fine stickers (and all kinds of other DEF CON goodies) at our eBay store, while supplies last.

DEF CON 25 Vendor Applications are Closing Soon!

Tue, 30 May 2017 10:31:25 -0700


If you're still hoping to be a vendor at DEF CON 25, you need to to get over to with all deliberate speed. The space is limited,and the deadline for submissions is June 1.

Don't miss your chance to share your products with thousands of members of the DEF CON community at Caesars Palace in July.

Tick-tock, tick-tock.

First Round of DEF CON 25 Speakers are Live!

Wed, 24 May 2017 17:17:55 -0700


The time has come, worthy citizens of DEF CON! Our first round of speaker selections, piping hot and ready for your delectation. It's going to be a big year, and it's a good time to start planning your con. We'd love to hear which talks you're most interested in so far. Stay tuned to this channel for additional speaker updates in the days to come.

Get psyched!

DEF CON in the Media: Mar Talks Art and DEF CON on PBS!

Tue, 23 May 2017 00:27:09 -0700


We put a lot of effort into the atmosphere of DEF CON. We bring in musicians and artists that set a tone of high-energy creative inspiration. One of our favorite artists is Mar Williams - you’ve seen Mar's bold and evocative work in the halls, in the programs, on your swag. That style and energy are a large part of the DEF CON image in recent years, and we’re very proud of Mar.

Mar recently shared some thoughts about the creative process and some ideas about the connections between hacking and art with an interviewer at PBS. Check it out and let it inspire you to just start something creative and see where it takes you.

If you find that you really like Mar's style and you need some more of it in your life, Mar has a Patreon account you can check out at

YouTube version:

You can also find this video (and an enormous quantity of other cool stuff) on the DEF CON Media Server’s Documentary Section. Related Documentaries/

Village Spotlight: BioHacking Village!

Fri, 19 May 2017 18:41:50 -0700

From the BioHacking Village website at "The DEF CON Biohacking Village is a multi-day biotechnology conference focused on breakthrough DIY, grinder, transhumanist, medical technology, and information security along with its related communities in the open source ecosystem. There have been multiple instances of DIYBio overcoming conventional science. We want to celebrate the biohacker movement with a compendium of talks, demonstrations, and a medical device hackathon. The 2017 BioHacking Village theme is Medical Industry Disrupt. The Medical Industry is one of the last to be touched by technology. We have placed doctors and the study of medicine on an altar for years; the time of ivory towers, pedestals, and information isolation has come to an end. Biohackers are working on projects that have traditionally been kept in the labs of the medical institutions. We are moving science forward by working on DIY projects that matter and use citizen science to solve the economic problems that are caused by privatizing medicine and the resources for research." If this sounds like your jam, or you just want to dip a toe in the DIYBio pool, you can find out more at, by following @DC_BHV or checking out their space on the DEF CON Forums.[...]

Better Know a Contest - Film Contest Edition!

Fri, 19 May 2017 18:42:08 -0700

The TD Francis X-Hour Film Contest is back! Think you've got the skills to conceive, script and shoot a short film in the midst of the DEF CON madness? Do you enjoy fun, prizes and awesome Contest shirts? Sign up, meet some basic requirements,and make your masterpiece.
Full details are on the Film Contest Website (, but the basics are:

• You get the full and final rules and the topic when you pick up your reg Packet onsite.

• You can film in the venue so long as you're wearing your brightly colored Contest tees.

• Up to 5 crew - actors and extras aren't counted as crew.

Win prizes like a Seattle Film Institute scholarship and human badges to DEF CON 26, and get your film shown at DEF CON 25.
Thank DEF CON through your Oscar tears a surprisingly short time later.*
Slots are limited, so if you want shot at DEF CON Film glory, get over to right away and begin your journey.

*your mileage may vary, but you definitely can't rule it out.

DEF CON 25 Village Spotlight: Tamper-Evident Village!

Thu, 11 May 2017 11:08:47 -0700


Tamper-evident tech may not be the flashiest security are out there, but it's a fascinating way to get your hands dirty in some ground-level physical security. The wily hacker who masters this space must know methods and techniques for defeating a wide variety of real-world seals, all the while stepping so lightly as to remove all evidence of their passing.

The Tamper-Evident Village brings a ton of different seals for you to practice on, helpful humans to point you in the right direction and even a few contests to test your skills.

Join us in the Tamper Evident Village and level up your physical security skill set!

Tuesday Feature: Better Know a Contest!

Wed, 10 May 2017 00:33:16 -0700


We're spotlighting some of the contests of DEF CON 25, to help you map your time and maybe get some practice in.
Today's Featured Contest: COINDROIDS!

Coindroids is sort of an RPG, set in a post-humanity Earth where only financial services droids remain, battling each other through the ruins for upgrades and survival. Money is the goal, both as a symbol of power and the weapon from which power is derived.

The game is played within the blockchain, and each block represents a round. To attack, you send defcoin to the attack address. To defend, you send defcoin to a 'block' address to raise your shield. Gain experience, level up, purchase new and more powerful armaments and upgrades and claw your way up the leaderboard. Rule the Cryptocurrency wasteland.

For a thorough explanation of the game's inner workings, check out the coindroids github:

Sign up and get some reps in at the Coindroids website:

Flashback Friday: DEF CON the Documentary!

Fri, 05 May 2017 22:53:11 -0700


For today's #defconflashbackfriday, we offer the DEF CON documentary we commissioned for DEF CON's 20th anniversary. It's a great way to get a feel for what DEF CON is about and the amazing community that makes it happen.

If you've always wanted to come to DEF CON but wished you knew more about what to expect, set aside some time this weekend to watch the video and get up to speed. If it seems like your cup of tea, we'd love to have you join us for our 25th Anniversary Celebration at Caesars Palace.

We'll save you a spot.