block ftp

Is there a way to block ftp access from my web from my cpanel?
If so, please tell me, thank you.

No, there is no way to disable FTP access completely. If your credentials may have been leaked, the only thing you can do is reset your password.

If that same step a guy knows the key and data of the FTP, and I crap the web, then I want to change the key, when the update <is not updated, nothing remains the same key.