I was just attempting to dive with a friend and we where in final steps of champ selection when, on my screen I receive a notification that i have been logged in else where. Im instantly kicked from the game and now sufferer penalty because I left a game in Champ select this isnt the first time this has happened and most likely wont be the last. But this is a bug in the system, because Iv never given out my info or Log in passwords.
It's not a good idea to brush it off and assume it's a bug, you should change your passwords and secure your email and any accounts that share login info with them. And to cover your ass you can submit a Support Ticket and let them know when this happened and that you've already secured your account. You don't want to get banned because someone logged in from a client with scripts and Riot thinks you were ok with it because you did nothing.
Please refer to the following articles for securing your account, and recovering it if compromised;
Thank you
