Security News > 2021 > March > Mysterious bug is deleting Microsoft Teams, SharePoint files

Microsoft SharePoint and Microsoft Teams users report files are missing or moved to the Recycle Bin after the recent Azure Active Directory outage this week.

Since Tuesday, BleepingComputer has spoken to numerous Microsoft SharePoint administrators bombarded with client calls about missing files in their SharePoint folders.

"Today we discovered that we are missing hundreds of files. Strange was, that we were missing only files... folders were there. We found who deleted them but she claims that she did not delete anything. Because she is newcomer she was browsing through many files and she claims the she found the files she opened in computer's recycle bin the next morning."

"Because the files, I've seen in her recycle bin, were deleted almost at the same time I would believe her as it would be impossible for a normal user to delete so many files in such a short timeframe. The only way to do that is to delete all folders, but only some files at some folders are deleted," a SharePoint admin posted to Microsoft's community forums, looking for help.

"Some users may have received some form of notification indicating that their files were deleted; such as a message from OneDrive stating"Remove files from all locations", or a notice that their files were being removed from their synced folders and placed into a recycle bin.

To make matters worse, numerous Microsoft Teams Free users report that files shared on their channels are no longer accessible in either the desktop or web client.

News URL

https://www.bleepingcomputer.com/news/microsoft/mysterious-bug-is-deleting-microsoft-teams-sharepoint-files/