San Francisco — Facebook acknowledged on Thursday a software glitch that changed the settings of about 14-million users, potentially making some posts public even if they were intended to be private. The news marked the latest in a series of privacy embarrassments for the world’s biggest social network, which has faced a firestorm over the hijacking of personal data on tens of millions of users and more recently for disclosures on data-sharing deals with smartphone makers. Erin Egan, Facebook’s chief privacy officer, said in a statement that the company recently "found a bug that automatically suggested posting publicly when some people were creating their Facebook posts". Facebook said this affected users posting between May 18 and May 27 as it was implementing a new way to share some items such as photos. That left the default or suggested method of sharing as public instead of only for specific users or friends. Facebook said it corrected the problem on May 22 but was unable to c...

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