Since 2017, in Indonesia, there is a resolution that requires all SIM cards from all owners to register your phone number using a personality certificate (KTP). In August 2022, a hacker under the pseudonym Bjorka, which became known after the largest hacker attacks in Indonesia, said that he managed to steal a database of this registry with all mobile phones (1.3 billion lines). The leak contains the phone, the name of the proud, the registration date and the user document number.