But, to be honest, NetBSD is almost as secure as OpenBSD today, at least architecture-wise.
You read it right! Don't use OpenBSD it is full of security wholes. I know of at least two remote holes in the default install, in a heck of a long time!I did read about the topic, and im not very sure, Openbsd has backdoors? I read people to say not use openbsd for this.
OpenBSD is one of the most secure operating systems IMO