August 10, 2023 - 8:00am PDT to August 13, 2023 - 6:00pm PDT
Caesars Forum, Flamingo, Linq, and Harrah's in Las Vegas, NV

Join EFF at DEF CON 31! We're excited to be back for another DEF CON with a membership booth in the Vendor area, a contest, and a bunch of talks.

Join the Cause

Come find us in the Vendor area talk to us about the latest in online rights, get on our action alert list, or donate to become an EFF member. We'll also have our limited-edition DEF CON 31 shirts available! These shirts have a puzzle incorporated into the design. Try your hand at cracking it!

Learn More About EFF's Work

UN Conventional Cybercrime: How a Bad Anti-Hacking Treaty is Becoming Law
EFF Policy Director for Global Privacy - Katitza Rodriguez & EFF Senior Staff Technologist - Bill Budington
Thursday, August 10 @ 11 AM | DEF CON 31 - War Stories @ Forum

The Hackers, The Lawyers, And The Defense Fund
EFF Staff Attorney - Hannah Zhao
Friday, August 11 @ 9:30 AM | DEF CON 31 - Track 3 Forum

Tracking the Worlds Dumbest Cyber-Mercenaries
EFF Senior Staff Technologist - Cooper Quintin
Friday, August 11 @ 2 PM | DEF CON 31 - War Stories @ Harrah's

Ask the EFF @ DEF CON 31
EFF Legal Director - Corynne McSherry; EFF Staff Attorney - Hannah Zhao; EFF Staff Attorney - Mario Trujillo; EFF Associate Director of Community Organizing - Rory Mir; EFF Senior Staff Technologist - Cooper Quintin
Friday, August 11 @ 8 PM | DEF CON 31 - Track 3 Forum

Abortion Access in the Age of Digital Surveillance
EFF Legal Director - Corynne McSherry & India McKinney
Saturday, August 12 @ 4:30 PM | DEF CON 31 - Track 3 Forum

EFF Benefit Poker Tournament

We’re going all in on internet freedom. Take a break from hacking the Gibson to face off with your competition at the tables—and benefit EFF! Your buy-in is paired with a donation to support EFF’s mission to protect online privacy and free expression for all. Play for glory. Play for money. Play for the future of the web.

Tech Trivia Contest

Join us for some tech trivia on Saturday, August 12 at 6 PM! EFF's team of technology experts have crafted challenging trivia about the fascinating, obscure, and trivial aspects of digital security, online rights, and internet culture. Competing teams will plumb the unfathomable depths of their knowledge, but only the champion hive mind will claim the First Place Tech Trivia Cup and EFF swag pack. The second and third place teams will also win great EFF gear.

Looking for Help?

As in past years, EFF staff attorneys will be present to help support the community. If you have legal concerns regarding an upcoming talk or sensitive infosec research that you are conducting at any time, please email Outline the basic issues and we will do our best to connect you with the resources you need.

Read more about EFF's work defending, offering legal counsel, and publicly advocating for technologists on our Coders' Rights Project page.