@homelessjun Yep. I lost files, and there were edits to some records.
But fortunately, I always keep multiple copies somewhere, so when it became an issue, I showed them a few of the copies with the modified date of files intact.
The guilty parties hated me more. Unfortunately, the company can not find solid evidence of their manipulation so they got away. But it was obvious since those parties were the only ones who publicly show their office-politics.