North Korean hackers target Mac users with devious new malware

North Korean hackers are targeting Mac users with NimDoor, a new backdoor malware written in Nim to evade detection. The attack begins on Telegram, luring victims to a fake Zoom meeting where they unknowingly download malware that steals sensitive data and cryptocurrency. This represents a concerning evolution in North Korean cyber capabilities, exploiting remote work trends and perceived Mac security. The Lazarus group has previously stolen over $3.4 billion in cryptocurrency attacks between 2021-2025.