A nice post I found today about that "insecurity" in Vista which deals with a possibility that an attacker could use the Voice Recognition in order to harm your computer. If you leave the computer as secure as it came by default, you'll pretty much be just fine!
I talked about it here, and this just raises one more reason to keep the UAC on:
Microsoft is aware of the issue but gives it little credit for the same reasons mentioned. The UAC (User Access Control) will prevent serious harm, because a password is required for several core functions requested by the operator. At best, this is a seriously funny gag. Imagine someone with Vista that leaves the computer unlocked as they step away from the desk. You setup all the things needed and, as you talk to them, call out commands. Another gag would be to set up the required features, then email them a ‘funny’ audio file for them to play. Windows Vista Business Edition has this feature, and you can be sure that office pranks will go to a new level.
