For years, Facebook has been loaded with bum links that spread virally across the social media platform and take users to malware-infested site. These are the ones that have cryptic promises of something shocking or titillating but seem to be written in a style that doesn’t sound like something your friend would be saying even though it’s on their feed. Now Facebook is doing something about it, partnering with security firm Websense to warn users that a link will take them to a malware site. It’s a nice move and one wonders why they haven’t done it sooner.