I went through the forums to check up on that and the consensus seems that the same defenses that work for other online games work for this one: have a strong password (15+ random characters including uppercase, lower case, numerical and special symbols), and watch your internet habits to avoid trojans and keyloggers. Personally, I use "Keypass" to manage my game passwords. Since you need to carry around a memory stick to access your games, the disadvantages and risk are obvious. However, you only need to know one password master password to access the pw database. Make that one simple and go nuts with every password you store in it. It has the added bonus that you'll almost never need to type the passwords you store in there, deballing any keyloggers you may already have.