[Bush2000]

NSA Security Recommendation Guides

[CyberCowboy777]

Any system connected to the net is vulnerable.

The key to security is:

Following accepted guide lines (check and recheck that you did not leave a stupid port open or unfiltered)

Keeping up on your patches (even Unix has had holes)

Testing - PAY for a Security Audit

If you can't do those - Disconnect.