The shocking truth: In some ways, it is easier to hack systems than it is to protect them. There are many automated tools that greatly simplify the art of hacking yet it often takes someone with IT knowledge to protect a system. You will have to find thousands of ways to protect against, but an attacker only needs to find one way in.
Help protect yourself at the foundation: First, discuss and determine how aggressive you want to be with your patches – and get them applied. Second, be sure to make users something other than local administrators.