Don't click Facebook's sexiest video link, unless you want malware
Apparently thousands of Facebook users were struck again by messages from friends claiming "sexiest video ever" and referring to a thumbnail of a woman riding a bike. But they were fake messages hoping to lure users into clicking the link and infecting their computer with malware, or spamming it with ads.
But like all good social engineering, however, even if Facebook ends its current viral incarnation, another virus will mutate from it. That means that once the sexy video dies down, it will be another link to another "great page" or video from a friend.