I have a non-gaming question related to Steam. I gave a family member my user & pass to play my stuff on his PC (he lives a few miles from me). He done so today for the first time and whilst I was using my PC (with steam open in the background) a game, Little Nightmares started up. He was playing it, unbeknownst to me at the time, I thought my PC had gone cuckoo so I closed it. He messaged me and told me he was playing the game but it was closing and reverting to the desktop (I was closing it from my end). Anyway, long story short he told me he could see my desktop from his end. I had my google homepage open and I saw him typing Little Nightmares into the search box.
WTF is all that about? If he and I are both logged into my Steam account can he snoop on me? He was remote playing btw, he didn't have Little Nightmares installed on his PC so I guess he had access to my game data (and seemingly some form of control over my browser), I told him not to remote play anymore and install the game files on his computer.
As I said, wtf happened?