We reported yesterday about World of Warcraft's account problem. There might be some unusual activity affecting a small subset of users, maybe, which Blizzard are looking into and will most likely fix very, very shortly. They've announced it because they've had to send out a few emails to those few users affected, and I suppose they wanted to nip the whole complaint in the bud before people started freaking out.
Along with their warning, they also told users to change their password and buy an authenticator, just in case. It's not enough to keep your 12 character, alphanumeric password safe anymore, you also need to update it often and buy additional third party hardware/software in order to protect your digital gold, your emails and your social network account. Is it worth it? Is it just paranoia?