It’s round about now you might want to think about a Mac.
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 a 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.