[HELP] Steam alert

Hello, MPGH members! I have a problem in my Steam account, recently i received alert in Steam client. I didn't steal any accounts. Only used to play with friends in CS:GO, because I couldn't play on my account unnecessarily high rank. Maybe someone can give me advice how to remove this Steam Alert?

Try and get steam support to do it. Thats all I could think of.

Dude I doubt anyone on mpgh can help you. Your best bet steam support.