I love this game, it has taken up all my free time and I haven't touched my Xbox in a few weeks!
However, there have been a LOT of phishing attempts lately. I got an e-mail this morning saying someone from Budapest, Hungary tried to log into my account. Reading their forums, there have been many attempts from China, Japan, etc.. A password change and activation of their e-mail verification system is probably a good idea for anyone who hasn't done so.
Here's a good comic on how to make a strong password.
