Hi guys, I don't wanna spook anyone but there is a possibility that there is a security breach somewhere. But this is just a wild guess. I'm not currently writing this message with my linked steam account because I don't dare logging into it right now via this website.
I had the same issues you described and my Steam account was hacked the 18.12.24. and I realised it today night. This doesn't prove anything but it certainly also isn't something to be ignored.
I witnessed
live how suddenly my game PoE2 closed without any message and shortly after even Steam closed. I restarted Steam, logged in and got a authenticator prompt for Steam Remote on my PC screen. I think that's when someone f'ed up or tried to maybe even get access to my PC?
I immediately made screenshots and checked my login history any
yes I had
multiple logins from several cities in Russia over the last few days.
I then revoked permission for all devices I gave (I had given 1 family member my steam login data), reset my authenticator and changed my password.
They didn't bother changing my password, I guess they just wanted to remain undetected for as long as possible and just sell / buy items and gift games and steam points, what they did.
I noticed the selling of stuff from my account when I checked my emails and there were hundreds of emails about selling stuff from my inventory, some of them in Korean. All in all it seems that they had just sold stuff of about 20€ but they definately would've continued if I didn't realise.
What bothers me most is that I just recently completely formatted my PC and reinstalled Windows.
So I think the breach must have happened as 1 of the 3 possibilities:
-my family member's PC is infected somehow or
-my account was already compromised weeks before
-the PoE trading site steam login
I'm just guessing here, but you guys should definetly
check your steams login history on steam because there were several unauthorised logins to my steam account. Unfortunately you can only see the logins after 24h.
If someone knows more about this stuff please write your info because I don't know if I'm in the clear now or still need to reset my PC and change all of my passwords.
I will also keep looking into my recent logins on steam.
Screenshots: