Welcome to the San Francisco chapter of 2600: Hacker Quarterly magazine. We are a group of hackers, crackers, phreaks, and geeks interested in discussing all aspects of technology as well as meeting with other like-minded folks.


We hold regular meetings open to everyone on the first Friday of every month. We invite you to join us at the following locations:

6:00 - 7:00PM The initial meeting takes place inside 4 Embarcadero Center near street level fountains.

7:00 - 11:00PM After enough people arrive, we move on to eat and drink at one of many nearby restaurants accessible to all ages. The exact place is usually announced on our mailing list below.

get involved

You can get a better feel for the meeting and its members by chatting with us in the #sf2600 IRC channel on EFNet, following discussions on the sf2600 mailing list and reading past meeting archives in our weblog.

show your skills

Check the terminal section of this site for an occasional hacking related challenge or a puzzle to solve.