Cyber Espionage, APT37 targets journalists with GoldbackdoorStairwell cybersecurity experts: The new North Korea’s malware spread via messages sent from the personal… Cyber Espionage, APT37 targets journalists with Goldbackdoor27 April 2022Francesco BussolettiCyber, Defence and Security Stairwell cybersecurity experts: The new North Korea’s malware spread via messages sent from the personal email of a former director of South Korea’s National Intelligence Service (NIS).