FreeBSD is an operating system for a variety of platforms which focuses on features, speed, and stability. It is derived from BSD, the version of UNIX® developed at the University of California, Berkeley. It is developed and maintained by a large community.
In addition to its Security advantage over other OS, FreeBSD provides a stability edge. FreeBSD servers have been known to run for years without issue. These are sufficient reasons for us to prefer FreeBSD over other OS.