This ZDNet Australia story is quite disturbing.  My first impression of OneCare was quite positive but I uninstalled it after having some problems with my video card that seemed to be related. But this story is horrendous. The idea that a security product could destroy your data is off the charts.  Security is necessary but does it also have to be evil?

Microsoft has admitted that its Live OneCare security suite has been accidentally deleting some users’ Outlook and Outlook Express e-mails.

Source: Microsoft’s antivirus deletes users’ e-mails: ZDNet Australia: News: Software