I have accidentally shared my sync code to some random email address. Though I have removed all my devices from the sync chain except one and don’t see any other device using my sync chain. So I am kind of relieved that it is not being used by anyone else.
I have removed all saved passwords from the device which is still using only the sync code.
But is there any way I can invalidate the old sync code so that if someone even has access to it, it won’t sync my browser settings (including the password ) to his/her machine?