Rare pic of an hacker attempting to find a Buffer Overflow vulnerability.

Important message from @joernchen in his @nullcon keynote presentation 🚀❤️

Want to hack AI things with me? https://t.co/vXbi1jz91i

The future is now and the past keeps reaping itself ! #Keynote #nullconBerlin @joernchen 👍

@joernchen @nullcon Who doesn't want to be joernchen?

Be careful out there, identity theft is real!

I call the slides done, see you tomorrow at @nullcon

Current status: Doing ✨annoyingly funky slide design ✨ in preparation for @nullcon

unfortunately and he seems stuck in this condition. We’re based in Berlin, Germany but really any contact with a specialist who would be willing to take on this case we’d be grateful for! To reach use you can DM me or contact us via Email at unclear.condition@gmail.com [3/3]

(myoclonus and/or spasms) to finally find a cause and, above all, an effective therapy. The symptoms are bothering our son ever since he’s born, now for more than nine years, seriously affecting his sleep. The usual processes and medical contact points have failed us [2/3]

Today I have a more serious topic than usual, please consider reposting for reach: My wife and I are urgently looking for a specialist in neuropediatrics or a similar field for our autistic child with a diagnosed, but not further specified, movement disorder [1/3]

👩‍💻 AI intern on “vibe mode” — what could go wrong? 🥳 #NullconBerlin2025 is excited to announce Joern Schneeweisz as our #keynotespeaker, who’ll take us on a wild ride through prompt injections, AI double agents, and accidental database wipeouts 👉 https://t.co/IKOmypf95K #LLM

The recording is up now at

#OffensiveCon25 videos are now up! https://t.co/aRzmXS7iPA

Things that make me nervous: seeing this combo while attending @offensive_con

"Parser Differentials: When Interpretation Becomes a Vulnerability" by @joernchen !

How to choose a research target [0-day hunting & exploit development]

XSS based on DNS CNAME Type Record

@joernchen Like Rule 34, but for vulns.

Don’t miss out tomorrow!

Our Ask a Hacker series is back once again! 🦊✨ Join me and the rest of the GitLab AppSec team as we host an AMA with the security researcher ahacker1. Sign up at the link below, and you'll be invited write your question in the agenda. https://t.co/6XMox3e8v8