North Korean hackers have been linked to a data breach at South Korea’s largest
hospital, according to the South Korean National Police Agency (KNPA).

In a press release, the police said attackers targeted the Seoul National
University Hospital (SNUH) between May and June 2021. In a two-year
investigation, the agency traced the attack to North Korea, based on a series of
clues, including:

* Intrusion techniques observed in the attacks
* IP addresses that have been independently linked to Nor