Everyone thinks of their password when the "How can I prevent being hacked?" comes up. What everyone forgets is password recovery. 'Hacking' as done by Anonymous and other people today usually involves resetting the email password. It's amazingly easy to find answers to questions such as "Where was my honeymoon?" or "What's my mother's maiden name?". Once the email account at yahoo, gmail, hotmail or elsewhere - all of which have a process to reset passwords - are cracked, all the other accounts linked to the email can be taken over. Remember Palin? Because of the above, I always set the recovery to a ~32 alphanumeric string, and the question to an insulting statement.