Announcement

[cancelled]

Back for DEFCON 21 - The 10,000¢ Hacker Pyramid!!! Come and be a lucky audience member who will participate with a DEFCON Celebrity in a fast paced game of Pyramid! It may be the last Dick Clark property to be Seacrested... so we're bringing it to you FIRST! Every contestant has a chance at the FABULOUS PRIZES - all the way up to the GRAND PRIZE of 10,000¢!!!!!!! (site),(twitter.)

This contest was first held at Defcon 13. What is being planned for this year? More inside. (site)

Contest run by Deviant, Black Bag is to replace Gringo Warrior, (twitter)

Download a file encrypted with Whitenoise, and 1 Million bytes of key stream, and try to break it. A Whitenoise key has never been broken. Submit your solution to us any time over the next year (you'll need it!) to see if you win! (site)

A contest requiring use of DEF CON Badges from DEF CON past to communicate messages. (image link)

Temporary description until one is provided:
Taking over the CTF this year we have the "Legitimate Business Syndicate" prepared to run CTF at Defcon. (site) , (Registration), (twitter)

CTP is a network scavenger hunt. In this challenge, contestants will monitor the network, look for clues, solve puzzles, and win prizes. (signup)

For the 4th year, KoreLogic is running the premiere password cracking contest. How many hashes can you crack during DEFCON? Fire up your CLOUD and GPUs. (site), (twitter)

Coding, compiling, competition, consumption (of alcohol) -- think of the fun! (site), (twitter.)

"Impossible to reseal or reuse". Your goal is to prove them wrong and document your work every step of the way. (site)

Accept challenge to code a new exploitation utility for release during Defcon. (Description may change)

RTFR inside and submit to us a short story. The topic may be of your choosing so long as it meets the guidelines in the rules. Read threads inside for more information

Building a sustainable distributed society based on technology.

From Vegas 2.0, creators of The DEF CON Summit, Borrowed from "Cards Against Humanity," you have Hackers Against Humanity. (site)

Get the answer, provide the questions. Score the most points, and you win!

Hackers and gamers team up in the coolest gaming tournament at Defcon. Combining a hacking contest with a TF2 tourney, the teams must work together as actions in one environment impact the other. (twitter), (site)

King of the Nerds style game for Hackers: Candidates selected from video audition on youtube, Challenges will be created from hacker/maker interest areas. (site)

The Network Forensics Puzzle Contest is a challenging mystery requiring contestants to forensically analyze packet captures (and more!) to uncover an evil plot. (site)

Spend less than $500 to mod a Rascal (or similar) without damaging it by 1:00pm Saturday. Who will win?

A drop-in puzzle contest for novice to advanced individuals or teams who don't want to commit to doing a contest for the whole con. (site)

Discussions for The DefCon Scavenger Hunt. Send suggestions for the scavenger hunt list to scavlist (and here is where the at symbol can be placed) gmail (and of course you need a dot here) com, (site), (Facebook), (twitter.)

For Defcon 21, the Crew at Social-Engineer.org is challenging kids. We are inviting those of you who think you can use ethical social engineering skills to stretch your limits as a social engineer. A unique blend of information gathering, planning and attack vector execution will challenge the very core of every participant. This will be a different SE challenge as our focus is not on who can “get” the target the worst, but a true display of SE talents. (site)

Returning to Defcon 21, the Crew at Social-Engineer.org is challenging you. We are inviting those of you who think you can use ethical social engineering skills to stretch your limits as a social engineer. A unique blend of information gathering, planning and attack vector execution will challenge the very core of every participant. This will be a different SE challenge as our focus is not on who can “get” the target the worst, but a true display of SE talents. Takes place in the Social Engineer Village. (site), (event) (blog), (twitter)

The Schemaverse is a space-based strategy game implemented entirely within a PostgreSQL database where you compete against other players using raw SQL commands. Use your SQL skills to interactively command your fleets to glory during this weekend-long tournament for the database geeks. Or, if your PL/pgSQL-foo is strong, wield it to write AI and have your fleet command itself while you enjoy the con! (site) , (Twitter)

The one and only Defcon "Spot the Fed" Contest

Are you a sheep? Maybe you are and don't know it. Think you can herd the sheep to slaughter? Do it! This is the Wall of Sheep. (site), (twitter)

Participants try their skills with digital forensics, physical security, and other challenges from an exploit team. (site)

Defcon Wide search for all sorts of wireless emitting devices... ...if it can transmit a RF signal, it might be on your quest. Start: solve a encoded riddle, locate certain devices to create a key to access wifi.sheep.hunt network, where the game continues. (site)

Multi-feature, multi-contest, wireless rig contest. (site)