Code, security & the occasional cat.
A personal journal by Franz Bettag.
COMPFEST CTF 2026 · Reverse Engineering chall.exe is a 3,072 byte PE32 that barely does anything on its own. It allocates RWX memory, copies 674 bytes into it and calls the result. That little blob is the actual challenge. It starts in…
Read the storyTonight, April 16th 2026 at 19:20, i’m giving a talk at the Nuremberg Claude Code Meetup. The title: How I Accidentally Became #2 VDP Researcher for Germany on HackerOne Slides are here: no2vdp.bett.ag And yes, the #2 part is real. This…
Dear Peter, Kleine Katze, Mogli and Fussel, I don’t think people really understand what losing each of you did to me. With every one of you that died, something in me got worse. Something got darker. My humor turned another notch…
one month ago, i wrote about pivoting from freelance development to AI-powered bug bounty hunting. i started with “valid duplicates.” here’s where the rig stands today. From Duplicates to CVEsCVE-2026-1190 (KeyCloak) my agents found a…
Let’s be real for a second. The project market for freelance developers in Germany right now? It’s basically dead. The economy is weird, budgets are frozen, and everyone is sitting on their hands. But i’m not the type to sit around. For…
Over the last few years, i’ve immersed myself completely in the AI landscape. I’m not just talking about playing with ChatGPT for fun; i’m talking about high-level consulting, training and running my own models in my own racks here in…
You’ve probably heard about the new Generative Fill feature in the upcoming Photoshop version. Well i’ve come bearing good news, it’s public, available for everyone with an Adobe Creative Cloud Subscription, and it’s called Adobe…
Yeah i lied, it’s actually 6 things you’re doing wrong.. My bad. Since y’all probably have used Midjourney V5 in the past 6 months or so, i wanted to share a couple of tips and tricks to improve your Prompts. This works for most AI…
After trying to upgrade my Jekyll version from two years ago, and failing miserably, i decided to look for alternatives. Meet Hexo.ioWhat is it? it’s basically jekyll written in JavaScript it just works with jekyll Markdown files…
I finally got around to setting up a new mailserver and i decided to give OpenSMTPD a try. It wasn’t a natural birth, i can tell you that. The switching of the configuration syntax makes for a lot of outdated Google Search results. So…