Facebook blamed a software bug on Thursday for publicly revealing the posts of as many as 14 million users, marking the latest privacy headache for the social media giant.
The bug, which was active for ten days in May, changed the default audience on some users’ posts to “public” without their consent. That means some Facebook users who thought they were only posting to friends or within the social network could have published posts visible to the public.
The news was first reported by Recode.
Facebook allows people to choose the audience they want to share posts with and allows users to build specific friends lists, letting them publish posts visible by only a subsection of their Facebook network. Facebook users can also select “public” if they want to make a post viewable to anyone on or off Facebook.