Sophos is warning Facebook users to be wary of bogus event invites that are currently circulating on the social network. Spammers have invited millions of Facebook users to fake events in an attempt to generate income from online survey scams.

One event called "Who blocked you from his friend list?” has already tricked more than 165 000 people into signing-up, with a staggering 10,3-million users still debating whether to respond or not.
The scammers embed instructions into the "More info" section of the event's summary which leads unsuspecting Facebook users into visiting Web pages for online surveys or competitions, designed to earn commission for those behind the scheme. In some instances, users are also asked for a mobile phone number which is then signed up to an expensive premium rate service.
"Spammed-out event invitations and links to survey scams are some of the biggest nuisances on Facebook and have an impact on millions of users every day," says Brett Myroff, CEO of regional Sophos distributor, Sophos South Africa.  "It would be great if Facebook was being more proactive in shutting down these obviously bogus events. Currently it's far too easy for scammers to fill their pockets through schemes such as these."
Facebook users, Myroff adds, are reminded never to accept unsolicited invitations from suspicious events and to always think twice about clicking on links received via Facebook.