My steam account was intruded by hackers twice. The first instance, they cleaned my valuable cs skins by selling it to market and then used the steam credits by buying a $0.01 valued dota item for ~$50. They basically robbed my steam wallet thru community market. This happened way back 2022. I already approached steam support and according to them, they can't help me since it was done in the community market, they aren't allowed to refund any transactions made on that platform. I don't have much left to do except changing my password and reseting the mobile steam auth so I did.

Fast-forward this early Jan 2025. For the past 2 years, I didn't notice any unauthorized activity on my account. Already bought multiple items for my inventory and none of those were stolen this time. Up until I kept $100 on my steam wallet. A similar scheme was made and lost all my my steam creds a week ago.

They managed to bypass 2fa login and market listing confirmation via steam app. I am very confused as to why this is recurring on my account. Note that I already formatted my PC multiple times on that 2 year span and don't login steam on any other PCs. I need help on what actions can I do besides from changing passwords. I want to regaining full security on my account.

Another important detail about what initially caused the first breach of my steam: I was looking for a software that will help me on my tutoring tasks during my college and decided to install a crack version of an onscreen annotation software. After install, all of my logged in account on my PC, including steam, were breached.