Your account may be compromised

DO NOT TRADE

If you have access to the account

Steps to take NOW:
1. Scan for malware https://www.malwarebytes.com/
2. Deauthorize all other devices https://psteamproxy.yuanyoumao.com/twofactor/manage
3. Change passwords from a clean computer
4. Generate new backup codes for your Mobile App https://psteamproxy.yuanyoumao.com/twofactor/manage
5. Revoke the API key https://psteamcommunity.yuanyoumao.com/dev/apikey (there should be nothing in the APIKEY)

If you don't have access, start the recovery process.

https://psteamcommunity.yuanyoumao.com/sharedfiles/filedetails/?id=3456188107

Be warned that if you send a ticket, you may need to verify account ownership with Providing Proof of Ownership:

https://psteamhelp.yuanyoumao.com/en/faqs/view/40A0-8B4B-B54B-C51A

If you lost access to your account:

https://psteamcommunity.yuanyoumao.com/sharedfiles/filedetails/?id=3456188107

What counts as viable proof of ownership:
https://psteamhelp.yuanyoumao.com/en/faqs/view/40A0-8B4B-B54B-C51A