FBI warning over NZ firm and ransomware Waikato Hospital was recently the victim of a ransomware attack. File Image. '); } else { // } The FBI warns Auckland company Mega.NZ is being used by ransomware attackers. The company has stated to RNZ that there is no sign hackers are using its service to store patient data stolen from Waikato hospitals, but it cannot rule out the possibility. The FBI has issued a series of alerts since last year, naming Mega. The latest - on 20 May, three days after Waikato DHB was crippled - says Mega was one of two cloud storage services...