A North Korean government-backed campaign targeting cybersecurity researchers with malware has re-emerged with new tactics in their arsenal as part of a fresh social engineering attack.
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On March 2, 2021, Microsoft released out-of-band security updates to address vulnerabilities affecting Microsoft Exchange Server products. On March 3, after CISA and partners observed active exploitation of vulnerabilities, CISA issued Emergency Directive 21-02: Mitigate Microsoft Exchange On-Premises Product Vulnerabilities and Alert AA21-062A: Mitigate Microsoft Exchange Server Vulnerabilities.
