In a successful attack that shows how quickly North Korean hackers are able to evolve, the DPRK-linked Lazarus Group stole sensitive information from a Russian defense firm, cybersecurity firm Kaspersky said on Thursday.

According to the report, the hackers compromised a router in mid-2020 to create a bridge into a strictly separated network — a “highly interesting technique” that reportedly defeated all of the company’s protections.

“Lazarus is not just highly prolific, but highly sophisticated,” said Vyacheslav Kopytsev, one of the report’s authors. “With industries still dealing with remote work and, thus, still more