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Cybersecurity Snapshot: CISA Says Midnight Blizzard Swiped U.S. Gov’t Emails During Microsoft Hack, Tells Fed Agencies To Take Immediate Action

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The attack against Microsoft began in November 2023, when Midnight Blizzard – also known as Nobelium, Cozy Bear and APT29 – compromised a legacy, non-production test account that lacked multi-factor authentication protection.