Did You Accidentally Friend a North Korean Hacker on Facebook?

North Korean hackers have been preying on potential targets using Facebook, but the company has thwarted at least some of their activities.

Last week, Facebook joined Microsoft and others in the security community to disrupt a covert campaign, the White House said on Tuesday. The scheme involved creating fake personal Facebook accounts that attempted to build relationships with potential targets and coordinate other activities.

In a statement, Facebook confirmed its involvement and said the Lazarus Group, a hacking collective that many security experts suspect works for North Korea, was behind the fake accounts. "We also notified people who may have been in contact with these accounts and gave suggestions to enhance their account security," Facebook said.