Argentina’s official immigration agency, Direcci..n Nacional de Migraciones, suffered a Netwalker ransomware attack that temporarily halted border crossing into and out of the country. This may be the first known attack against a federal agency that has interrupted a country’s operations. The government first learned of the attack after receiving numerous tech support calls from checkpoints at approximately 7 AM on August 27th. Government sources told Infobae that “they will not negotiate with hackers and neither they are too concerned with getting that data back”””
Source: https://www.bleepingcomputer.com/news/security/netwalker-ransomware-hits-argentinian-government-demands-4-million/