dreaded_beast said:
The following article list Max OS X and BSD as the most secure OSes for computers continuously hooked-up to the Internet. Linux however, was listed as one that hacked into quite frequently.
http://it.slashdot.org/it/04/11/02/1722237.shtml?tid=172&tid=179&tid=190
So, what is the difference between Linux and BSD
How detailed do you want to get?
Short answer -- BSD was an offshoot of the original AT&T Unix, with a couple sub-flavors essentially re-written with security as a top level priority. Linux was started as a project by Linus Torvalds to provide an alternative Unix-like kernel for experimentation and such. It kind of took on a life of its own, and to a great extent jumpstarted the open source movement.
Properly configured, there probably isn't a lot of difference between one or the other in terms of security, and either is head and shoulders above Windows in terms of out-of-the-box security. If you don't have a lot of experience, BSD would be probably better as a 'fire and forget' box. Most of the popular Linux distros now have better installation routines that guide you through setting up Internet servers and such, and do a pretty good job of setting up a secure box, so it's not as big a difference as it used to be.
No machine left unmonitored and unpatched in the Internet is immune, though. If you give people a way in, even if it is only serving webpages or what have you, you've got to keep up to date and aware of new security risks, etc.
A properly configured and maintained box, be it Windows, BSD, Unix, or whatever, is a manageable risk. The interesting point of the article, though, is that they are discussing manual hacking attempts. The real differentiation between Windows and the *nixes is that Windows is far more vulnerable to automatic attacks (worms, trojans, etc).