[CLIENT] ? My wife caught someone hacking my account

My wife was logged into her League client when she saw on her friends list that my account was logged in and in a draft game, but I was not playing on the computer beside her. I came and logged in with my computer, and was subsequently loaded into a game, but received an error message before I loaded in completely. I changed my password immediately. I then waited, and after roughly 20 minutes got to the honor screen at the end of the game. I found that my team won the game, because someone had been playing me the whole time, and that I had been queued up with everyone else on my team who were now on my friends list!

It was the Lee Sin game on October 4, 2019. The other accounts in the party in the game(other than my own account that was hacked) are as follows: IIxX Ace XxII (the "II"s in the username are capital i's), Kaval, SmaIIPotato (the L's in "Small" are actually capital i's), and Aquairud. They all might be stolen accounts or bots, but they are assuredly related to one another. Especially fishy that two of the accounts are using hard-to-find usernames.

I believe this guy IIxX Ace XxII is botting. His match history is nothing but bot games except for the most recent game where he played Ezreal and my account was in the game but i was not playing. I think all of the bot games in his match history are him testing his bot program.