We've seen a sharp increase today in new virus variants getting through to email users due to the speed at which they're evolving to avoid detection.

Identical messages can arrive sometimes minutes apart but already containing different variants of the virus, making it a game of cat and mouse for the security vendors to keep up. The fake Amazon order confirmation complete with suspicious-looking ZIP file is the one we've heard a lot of reports about but I should stress these emails change by the minute so it's worth just thinking twice before you click links or open anything resembling an attachment.