MS Office Zero-Day Under Attack 172
paulBarbs writes "Microsoft is warning users to be on the lookout for suspicious Excel files that arrive unexpectedly — even if they come from a co-worker's e-mail address. In an advisory, Microsoft confirmed a new wave of limited "zero-day" attacks was underway, using a code execution flaw in its Microsoft Office desktop productivity suite. Although .xls files are currently being used to launch the spear phishing attacks, Microsoft said users of other Office applications (Word, PowerPoint, Outlook, Access, etc.) are potentially at risk."