Bingo. In sweden as example our birth date plus 4 unique digits is your nation wide id/ssn. So obviously your ssn is not exactly a secret and instead you also h

Bingo. In sweden as example our birth date plus 4 unique digits is your nation wide id/ssn. So obviously your ssn is not exactly a secret and instead you also have to proove that you are you with a photo id or online 2FA id. There's no such thing as loosing your ssn because it is already public.