One million Facebook users exposed to Zango worm

Given the popularity of Facebook applications, those annoying widgets which people in your network naturally assume you will be interested in (even though most are banal even by widget standards), it was only a matter of time before the trend was exploited by those with a less than social motive. And so it is that security threat researchers at Fortinet have uncovered a malicious widget which has already found its way onto the computers of 3% of Facebook users - or a million people if your prefer.