Security Research & Engineering

I find the bugs before someone worse does.

17 confirmed CVEs across 9 open-source projects. Author of hacker-bob, a local MCP runtime built to attack what you own and report only what it proved.

Portrait of Michalis Vasileiadis
17 confirmed CVEs9 open-source projectshacker-bob · 99 starsfounder-os · 12 agent skills
What I Build

What I build

hacker-bob

A local MCP runtime that attacks what you own and only reports what it proved. 17 CVEs across 9 projects came out of this repo.

founder-os

A startup operating system for AI agents. 12 skills that run founder jobs — sell, source, interview, hire, write, decide — tuned to a company in 10 minutes.

Offensive security research

Bug bounty hunting, exploit development, and chained vulnerability disclosure across production systems.

Off the Clock

When the terminal closes

Michalis and Cristal in front of the Reichstag, Berlin
Berlin, in front of the Reichstag.
Michalis kneeling in front of Cristal in a dim hallway
One knee, mid-joke.
Michalis and Cristal in a sleigh at a Christmas market
Sleigh ride at the Christmas market.
Michalis and Cristal under warm string lights at night
String lights, late night.
Michalis pointing at his CRISTAL t-shirt
The CRISTAL tee.
Michalis and Cristal sharing cotton candy at a night market
Cotton candy at the night market.
Michalis and Cristal laughing, close-up
Close-up.
Michalis and Cristal in front of a blue-lit stone tower at night
A cold night by the tower.
Michalis and Cristal on a San Francisco rooftop at night
San Francisco rooftop.
Claude Code reaction, from the beanbag.