Unreal Deleted my blueprint

Really sorry for being such an ■■■■■■■, I think I might have been hacked, ok first I put a sphere reflection actor in the level, however my computer couldn’t handle it and unreal crashed, when I loaded it back up again, two of my blueprints had been deleted, at first I thought this was a problem with unreal, but I later found that there were copies of some files in a folder where I had never put those files, also some files such as animation files have been altered a bit, for instance I have a sword stance where the character strafes left and right and its cut off in the middle of the animation. I’m almost certain I’ve been hacked, sorry again for being so rude, I don’t understand how this could have happened I have anti-virus and anti malware, why would anyone want to destroy my work? or why steal a game that is 5% complete?