Secure by DefaultEdit
OpenBSD's motto is antagonistic to the mainstream "User-friendly first, and security be damned" approach that has driven software development elsewhere.
Only Two Remote Exploits in the Default Installation, In Over Ten YearsEdit
This motto has been true since 2006.
OpenBSD's baby roots in NetBSDEdit
OpenBSD does have baby roots in NetBSD. It is maybe because Theo de Raadt had broken away from NetBSD and started OpenBSD, the Secure By Default BSD.