August 2, 2013 | By Aaron Jue

Encryption is Key: T-Shirt and Puzzle at DEF CON 21

EFF's fourth annual DEF CON t-shirt is a killer. Special donors will be able to pick up the limited edition "Encryption is Key" design in Las Vegas this year, but that's not all. This t-shirt is a solveable puzzle. The first 10 individuals to decipher it, retrieve the correct passphrase, and reveal it to the staff at the EFF vendor booth will receive a special prize. This t-shirt will not be available online unless some remain after DEF CON, but don't worry. There are some amazing things available right now.

After donating at our booth in Las Vegas, be sure to catch EFF in action at talks for Black Hat USA, Security BSidesLV, and DEF CON!

T-shirts and stickers are a small way of thanking the donors that allow EFF to fight for digital freedom. It also helps you start conversations about the issues that matter most in a rapidly-changing digital age. In a climate of rampant surveillance, strong encryption and robust security research matter more than ever. Thanks!

EFF is a U.S. 501(c)(3) organization and donations are tax deductible to the full extent provided by law.


Deeplinks Topics

Stay in Touch

NSA Spying

EFF is leading the fight against the NSA's illegal mass surveillance program. Learn more about what the program is, how it works, and what you can do.

Follow EFF

BREAKING: @JerryBrownGov has signed A.B. 2298, reforming California’s gang databases https://www.gov.ca.gov/news.p...

Sep 28 @ 2:19pm

The FBI got a warrant for its mass hacking, but it was an unconstitutional general warrant. https://www.eff.org/deeplinks...

Sep 28 @ 1:22pm

EFF exposed massive abuse of California's police databases. An @AP investigation reveals the problem is nationwide. https://www.eff.org/deeplinks...

Sep 28 @ 11:23am
JavaScript license information