[quote] I allowed one of my what I thought was a friend, log into my steam account to play destiny 2. [/quote] Not only is that a massive security risk, it is also against the platform and Bungie's policies to share your account. You could be banned for this. See the link below for details. http://bungie.net/ban [quote]however when I did that he managed to link his epic games ID to my bungie account[/quote] You will never be able to remove it. Only the account owner can remove the account. This is why you should [b]never ever[/b] share any of your accounts. [quote] is not threatening to lock me out of my account unless I pay $350.[/quote] Obviously do not pay. There is nothing that can be done about the account though. Bungie cannot help you, account security is our responsibility. Bungie can't remove platform accounts from our Bungie accounts. [quote]And before anyone says “thats your fault for letting him login to your account” I know. I shouldn’t have done it.[/quote] I'm glad you understand that this is on you. It's a lesson to be learned. [quote]People do it all the time [/quote] That does not mean it's allowed and safe to do. It's the same with speeding on the roads, just because people do it does not mean it's allowed. [quote]this is someone I played with frequently [/quote] No matter how much you trust someone, you should never ever give them access to your account. They can backstab you at anytime. [quote]Also, I tried to deactivate cross save but I cannot since I can’t authenticate his account.[/quote] Correct, only the account owner can remove it. There is nothing you can do.