Theo de Raadt

b. 1968, Pretoria, South Africa · Founder of OpenBSD; lead of the OpenSSH project

Also known as: de Raadt, Theo

Theo de Raadt founded OpenBSD in 1995, a Unix-like system focused on correctness, security-by-default, and proactive code auditing. The project has produced OpenSSH — the ssh client and server now shipped on virtually every Linux distribution — as well as LibreSSL, OpenBGPD, OpenNTPD, and the pf packet filter.