A consulting detective agency for cybersecurity, AI, and the engineers who build the future of both.
< / > LONDON'S FIRST SECURITY × AI × CODE COLLECTIVE < / >
Security Builders Club is London's first community for builders who treat code like evidence and the network like a crime scene. We ship side-projects, run CTFs, host AI labs, and turn curious minds into sharp ones.
Red team vs blue team nights. Live CTFs. Threat-model your own side-project. Learn the offensive playbook so you can build a better defense.
Prompt-injection labs. Local LLMs. Agent jailbreaks. The mechanism of the mind — explored as engineers, not spectators.
Ship-first, talk-later. Pair-program on real projects every week. Get matched with mentors who've shipped at FAANG, startups, and security firms.
Every member gets a key to the club — the study, the street, and the coffee house. Drop in whenever you need to think, code, or be heard.
Get help acquiring knowledge on our Discord.
Interactive capture-the-flag and cybersecurity learning — attacks and investigations.
Friday demo nights — upcoming.
No more building alone in a bedroom at 2am. Find your duo, your trio, your future co-founder. We match members by stack, interest, and ambition — then leave the rest to the gas-lamps.
From 48-hour cybersecurity hackathons to fireside talks on the mechanism of the mind. Every event is members-first — but a few seats open to the public each month.
London-based engineers, security folk and AI tinkerers — building the club we wished existed when we started out.
Art designer. Loves detective novels and languages. Builder who loves startup founding, socialising and sharing ideas — made this site.
The one with the deerstalker. Lives in the offensive-security side of the brain. Will find your bug before you finish your sentence.
Reads papers like detective novels. Building agentic systems, LLM tooling, and the club's in-house mentor matchmaking engine.
Applications are reviewed weekly. Tell us what you're building and what you want to break.