SEOUL: A North Korean hacking group known as Kimsuky broke into the network of South Korea’s state-run nuclear think tank last month, the latest in a series of cyberattacks by the North, a South Korean lawmaker said on June 18.

The breach of the Korea Atomic Energy Research Institute (Kaeri) took place on May 14 involving 13 Internet addresses including one traced to Kimsuky, said Ha Tae-keung, a member of the parliamentary intelligence committee, citing an analysis by Seoul-based cybersecurity firm IssueMakersLab.