Quick reminder, we're back Tuesday next week - January 27th: See dc4420.org. The Greene Man 383 Euston Road London NW1 3AU Nearest Tube: Great Portland Street. (Regents Park and Warren Street both short walks away; Euston Square and Euston a brisk 10 minutes.)

Happy New Year, everyone. We're back meeting on January 27th: See dc4420.org. The Greene Man 383 Euston Road London NW1 3AU Nearest Tube: Great Portland Street. (Regents Park and Warren Street both short walks away; Euston Square and Euston a brisk 10 minutes.)

This is tonight, from around 7pm!

We don't run talks in December, but join us at The Harp (or nearby) from 7pm on Tuesday 16th dc4420.org

Join us tonight for The Great Recruitment Firewall, and to plan the Christmas meetup! Details and directions at dc4420.org

There's still an opening for a second speaker on Tuesday. Email [email protected] if you want to step up.

Just 3 days away, November 25th: dc4420.org The Great Recruitment Firewall - Mariya Hristova The Greene Man 383 Euston Road London NW1 3AU Nearest Tube: Great Portland Street. (Regents Park and Warren Street both short walks away; Euston Square and Euston a brisk 10 minutes.)

This is tomorrow! We've still got space for a second talk - drop us an email at [email protected] #defcon #london

Just 5 days away, October 28th: dc4420.org * Lodestar Forge - Jamie Pegg The Greene Man 383 Euston Road London NW1 3AU Nearest Tube: Great Portland Street. (Regents Park and Warren Street both short walks away; Euston Square and Euston a brisk 10 minutes.)

Tomorrow evening, we have talks on Copilot and chemical plants. Join us from 6:30pm at the Greene Man dc4420.org #defcon #london

Tonight at the Greene Man, we've got @dekushrub.bsky.social on the dark web and Skyper on @phrack.org. Join us from around 7pm onwards dc4420.org

As well as @dekushrub.bsky.social returning to talk about the dark web on Tuesday, Skyper is visiting for @phrack.org's 40th anniversary. More at dc4420.org #defcon #london

Tomorrow (almost today) July 29th: dc4420.org * My hacking adventures as a software dev - Daniel Raines The Greene Man 383 Euston Road London NW1 3AU Nearest Tube: Great Portland Street. (Regents Park and Warren Street both short walks away; Euston Square and Euston a brisk 10 minutes.)

The @germnetwork.com team has been participating in the #e2eemessagingWG to figure out a way to have secure private group messaging that is compatible with ATProto. They've shipped a proof of concept of using your account to do this! You'll need to get on the waitlist as they slowly add people.

July's event is now posted. Presentation 1: Daniel Raines: My hacking adventures as a software dev Presentation 2: TBC 19:00 for 19:30, downstairs bar, The Greene Man, 383 Euston Road Closest stations: Great Portland Street, Warren Street, Regents Park, Euston. dc4420.org

We've got two talks! Jessica Wilson x.com/sweetserenit... will talk about automating forensics, and @n1ckdunn.bsky.social is back to show how new OWASP Top 10s could have stopped HAL 9000. Details and directions at dc4420.org

We're still looking for talks for tomorrow! Drop an email to [email protected] if you have a talk or suggestion

Next week. Are you coming...?

For anyone who was at DC4420 (@dc4420.bsky.social) on Tuesday, thanks for all the appreciation for my talk. Slides are available here: github.com/N1ckDunn/SOS...

Short notice, but... next meetup tomorrow, 19:00 for 19:30 start. dc4420.org * Is Your Phone Spying on You? An In-Depth Analysis of Vulnerabilities in Cisco VoIP Phones * Slightly SOSL’ed: Locating And Testing SOSL Injection The Greene Man 383 Euston Road London NW1 3AU

ssh [email protected] Have fun. I am reminded of TOPS20 on Kingston Poly's (then new) DEC 2060, in around 1980 (because that was the year I had my first slow melt-down over study stress for my A-levels, and took refuge in the Poly's computer lab on my school account).

DC4420 is back 29 April from 19:00 Talks : 30+ Years of Infosec Failures OWASP Nettacker dc4420.org NEW Location The Greene Man 383 Euston Road London NW1 3AU Closest stations: Great Portland Street, Warren Street, Euston. #dc4420 #owasp #defcon #infosec @dc4420.bsky.social

@dc4420.bsky.social The resuscitation edition of DC4420 will be on Tuesday 29th April 2025 commencing from 19:00. New venue is: Greene Man (Euston),383 Euston Road,London,NW1 3AU (maps.app.goo.gl/mPahakU6ZFmQ...) Nearest Tube: Great Portland Street, Warren Street. · Share · Like · Enjoy