I got hacked and someone uses my identity to send pokes

hello my account was hacked and its sending pokes with hack links in all my saved servers i’ve changed my password many times but i think it is still open on anothers pc

When you change your password, then other clients get logged out.

But if the person did Copy your identity before that change then there is nothing you can do about it.
The only thing you can do is to revoke permissions on that identity and use a new one from now on.

Off topic

But you definitely should check your computer first.

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