It's not apparent how widespread this is, but Rob, a concerned reader, passes along a warning that he received what is pretty obviously a hoax email claiming to be from Blizzard support (but from a diablo2.yada.yada email address rather than from Blizzard.com). The mail, replete with misspellings as cues, requests the user's Battle.net username and password, supposedly related to restoring accounts harmed in the recent cracking incident (story, story, and story). As far as we know, Battle.Net is not requesting any private user information for the process, as is usually the case in situations like this.