Gmail/Steam Compromised? Need Help

I got notifications for suspicious activities on two Gmail accounts last night. When I checked, there was an active session that started three days ago. This morning, I received emails from two different Steam accounts about transactions I didn’t make. I’m really confused about how this happened, especially since I have 2FA enabled. What steps should I take to secure my accounts?

Enable 2FA on all accounts if you haven’t already, and consider using an authenticator app. It’s also a good idea to change your passwords.

It sounds like your login tokens might have been stolen. Be cautious about clicking on suspicious links or visiting sketchy websites.

This is a serious issue with cookie theft. Clearing cookies after each session can help, but be aware that tokens can still be stolen during active sessions.

Check your PC for malware. It’s possible they stole your browser cookies that had active sessions.

Thanks for the advice! I’ve cleared my cookies in Chrome. How do I ensure all other programs, like Steam, are secure?