Because of the Swedish constitution, everyone in Sweden's name, address, birth date and, yes, personal identity number is completely public information. Thus th

Because of the Swedish constitution, everyone in Sweden's name, address, birth date and, yes, personal identity number is completely public information. Thus the systems and processes in Sweden have necessarily developed around a threat model of a potential attacker knowing all these details. The solutions Sweden has to proving identity despite this are not exactly radical: photo ID documents, and secure ID apps (encrypted certificates) on phones or smartcards.