August 14, 2018

FOCI Workshop (Baltimore)

Free and Open Communications on the Internet:

https://www.usenix.org/conference/foci18

Upcoming Events

December 10, 2025

State of the Onion 2025

Recent Updates

The Future of Tor Browser Alpha

by morgan | December 1, 2025

Starting with Tor Browser 16.0a1, the Tor Browser Alpha release channel will be based on Firefox Rapid Release rather than Firefox Extended Support Release. If you are an at-risk user, concerned about your privacy, or just need a web-browser that works reliably, you should not use Tor Browser Alpha and instead stick with Tor Browser Stable.

Keeping the internet free together: State of the Onion Community Day

by arturom | November 26, 2025

Join us for part 2 of State of the Onion: Community Day. Building on this year's theme, we've invited other members of the Tor community to share insights from their work and how they are supporting the fight to FREE THE INTERNET.

Counter Galois Onion: Improved encryption for Tor circuit traffic

by nickm | November 24, 2025

Tor is upgrading its relay encryption algorithm for improved security. In upcoming releases, Arti and Tor will both support a new encryption algorithm called Counter Galois Onion (CGO). CGO prevents attackers from tampering with encrypted traffic, adds forward secrecy, and brings Tor's encryption up to modern standards.