I have my housemate's old Mac. He still has an account on it, neither of us have each others passwords so we cannot access each others accounts, and public file sharing is turned off (and I don't keep files there anyway).
He let me borrow his external hard drive to back up some files temporarily, however I noticed that on this drive (which he also uses to back his files up), there were photos and videos from my account - it was like my photo stream had been backed up to his hard drive. These were in a folder called 'archive'.
I have tried checking terminal for logs etc but am finding it hard to get anywhere, as the 'last' command returns no results for his account. Is it possible that my photos and videos are somehow backing up to his computer or drives? It was quite disturbing seeing my photos and videos there already...and in a folder that had clearly been created and not just copied (as I don't actually have a single folder on my Mac for photos etc.). He created the accounts I have for me so I'm wondering if he has done something there...
Any help greatly appreciated.