DC212 (DEF CON Group New York City)
Manhattan, New York · Metro area
Irregular evening meetups at 7:00 p.m.
Meeting #46, "The Hiatus is Over", on June 19, 2026 ended a break of about a year. No later meeting was posted on November 3, 2026.
Free
meetup.com/defcon212 [S36]
DC862 (DEF CON Group 862)
North Jersey (Montclair area); rotating venues and some meetings online on Discord · Metro area
Usually a Friday evening at 7:00 p.m. early in the month; venue changes, some meetings online
The September 4, 2026 annual town hall was online on Discord. The October 2, 2026 meetup at Jersey Spirits Distillery in Fairfield appears in the Meetup past events list. Later meetings are November 6, 2026 (online on Discord) and December 4, 2026 (holiday party in Parlin).
Free
dc862.org [S3] [S37] [S38]
DC908 (DEF CON Group Westfield)
Westfield Memorial Library, 550 East Broad Street, Westfield · Metro area
Roughly monthly talks and workshops on Thursday evenings at 7:00 p.m.
2026 meetings were January 22, February 19, March 19, April 23, June 4, July 9, August 27, September 10 and October 22 (Trivia Fright Night, shown in the Meetup past events list). The next listed meeting is November 19, 2026.
Free
defcon908.org [S16] [S39] [S40]
Hack Manhattan Locksport Workshop
Hack Manhattan, 34 W 37th St, Manhattan · Metro area
Every other Sunday, 7:00 p.m. to 9:00 p.m., through December 27, 2026 (next: November 15, November 29, December 13)
Lockpicking workshop run by a Hack Manhattan member with tools supplied by TOOOL. The November 1, 2026 session shows 8 attendees in the Meetup past list. The New Jersey TOOOL Meetup group no longer exists.
Free
meetup.com/hackmanhattan [S41] [S42]
NYC2600
Citigroup Center food court, 53rd St and Lexington Ave, Manhattan · Metro area
First Friday of the month, 5:00 p.m.
Not every month gets a post on the NYC2600 site; check it before going. The site posts a notice for each meeting (October 2 and November 6, 2026 at 5:00 p.m. in the Citigroup Center food court) but never a write-up, so those dates are not counted as activity; last_activity stays at the September 4, 2026 meeting notice. The closer New Jersey 2600 meeting is in Bridgewater, but it posts no dated meetings.
Free
nyc2600.net [S4] [S5] [S6]