I discovered this week that on three separate dates around a year ago, a bunch of files in my team's SharePoint were deleted. this went undiscovered until now because working with those projects was put on hold last year, and only the files themselves were deleted (not the folder structure).
if the folders had been deleted too, I might have noticed and thought "hey didn't we have something here?" but since only the files inside the folders and subfolders were deleted, and those files were not being worked with, I did not notice
tysm microsoft