http://www.tgdaily.com/security-features/62988-facebook-offers-free-anti-virus.
Facebook’s struck a deal with five major security vendors allowing it to offer their anti-virus products for free. Microsoft, McAfee, TrendMicro, Sophos, and Symantec have also agreed to share their URL blacklists with Facebook in an effort to combat malware.
With all the spams and Malware on Facebook, it is about time they start providing customers additional security.
If it was me, I would invest in a good, paid antivirus for my PC. I’m not gonna pay full price though. What I do is look for coupons to give me some discount. I would personally recommend Godcoupons.com since they promote different antivirus programs like Eset, Norman, and others.