North Korean cybercriminals stole almost one terabyte of personal data from South Korean courts’ networks over the course of two years, an ongoing joint investigation into the breaches has revealed.

A DPRK threat group stole documents that included information such as resident registration numbers, financial records and medical certificates, the Korean National Police Agency (KNPA) announced in a press release on Sunday.

Investigators attributed the campaign to North Korea based on an analysis of the malware, payment details for leased servers and overlaps between IP addresses used in this attack and previous incidents attributed to