Not for the first time, Facebook users have learned that some of the information they shared through the ubiquitous social media platform reached a wider audience than intended.

The Menlo Park, Calif.-based company told 14 million account-holders on Thursday that a glitch from May 18 to May 27 inadvertently made all their posts during that time public — meaning they could be seen by anyone with a Web browser rather than the select friends and family for whom the items may have been intended.