That ex you blocked on Facebook may have had access to your posts after all.
On Monday, Facebook revealed that a bug had affected the privacy settings of 800,000 users. The bug allowed users who’d been blocked on Facebook and Messenger to become unblocked — without those who blocked them knowing about it.
According to Facebook’s statement on the matter, 83 percent of people affected by this bug had “only” one blocked person temporarily unblocked. The other 17 percent of users had more than one person unblocked, thanks to the bug.
Read more about this at mashable.com.