Think of computer security as being much like an onion: multi layered and can make you cry! The dry outside layer of the onion is equivalent to your internet router. Those inside layers of the onion get sweeter as you get closer to the center, it is the same with security – the deeper you get, the better environment is protected. The simple fact is that a $200 router is NEVER going to give you $2000 worth of protection. Protection comes from many layers.
- A physical layer or hardware - a router
- A software layer - a firewall
- A software layer - port filtering
- A software layer - filtering web requests