Encryption is useless, completely useless, unless you know its limits and use accordingly.
“I’m unwilling. I don’t use PGP. I don’t do any wing nut stuff. I just want to be a normal person. Unless you have Facebook and Gmail, you won’t understand what people’s expectations are.”
When I was young, Paul Simon released his hit song, 50 Ways to Leave Your Lover. Inspired by this song, I've collected 50 ways sysadmins and laypeople can avoid getting hacked.