Vista has speech recognition hole
Microsoft has admitted that speech recognition features in Vista could be hijacked so that a PC tells itself to delete files or folders. Vista can respond to vocal commands and concern has been raised about malicious audio on websites or sent via e-mail.
In one scenario outlined by users an MP3 file of voice instructions was used to tell the PC to delete documents. Microsoft said the exploit was "technically possible" but there was no need to worry.
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