i haven't slept in like 2 days this was not a good time for something like this : (

i have just realized you cannot delete steam chat messages teehee

Recovered my acc, the guide down there worked. Gonna try to go and delete all the messages it sent before it does any harm but the 150 or so items in my inventory it sold are gone for good lol.
Stay vigilant people, somehow my girlfriend suffered the exact same attack today as well.
Security is no joke, write a new password down on pen and paper if you can.

This account was stolen
Don't listen to their Messages

Guide to hopefully fix this issue though. https://help.steampowered.com/en/wizard/HelpWithAccountStolen

This account is hacked. They sent a sketchy link that's pretending to be a steam link. But it's spelled wrong. So it's not legit. These sketchy links can cause you to get hacked. So if you got a message from them. Don't open it up. Sorry to Lyza and I hope they can get their account back.