Facebook has apologized for the retention of un-posted videos that were never made public. The social media company blamed a “bug” and called the glitch unintentional. The videos in question were taken when Facebook allowed users to shoot videos directly from a browser. The browser video tool, now defunct, worked by streaming videos to Facebook as they were being recorded, rather than after they were posted. In the wake of the Cambridge Analytica scandal, users are taking more of an interest in what Facebook has been storing on them.”]
Source: https://fortune.com/2018/04/03/facebook-videos-delete-personal-data/