so well that many 'bad actors' who built businesses on the tactic are
closing shop.
Advances in technology for recognizing suspicious patterns of likes
has enabled the social network to block such activity by malicious
software, fraudulent accounts, and click farm operations that employ
armies of low-paid workers.
"We continue to adapt and improve the methods we use to prevent fake
likes because scammers are constantly evolving and testing new methods
to try to get around our spam prevention systems," Facebook site
security engineer H. Kerem Cevahir said in a blog post.
"This work has made it extremely difficult for the people selling
fraudulent likes to actually deliver their promised likes to paying
customers."
During the past six months, Facebook has tripled the number of
seemingly bogus likes detected and blocked before reaching pages,
according to Cevahir.
He credited the campaign with causing a large number of vendors
hawking inauthentic likes to go out of business.
Facebook also removes fake likes from pages at the social network,
notifying account administrators to the actions.
Cevahir said that fraudulent behavior was only "a tiny fraction" of
the overall activity on Facebook.
"Likes created by fake accounts or people without real intent are bad
for people on Facebook, advertisers and Facebook itself," read a
security guidance page at California-based online social network.
"We have a strong incentive to aggressively go after the bad actors
behind fake likes because businesses and people who use our platform
want real connections and results."
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