Cybersecurity

Microsoft Warns Other Firms of Russian-Sponsored Group in Email Hacking

  • Russian state-sponsored group accused of espionage attack
  • Compromised account didn’t have authentication, Microsoft says
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Microsoft Corp. said an account that was compromised by Russia-linked hackers, resulting in a hack of some company emails including senior leaders, didn’t have multifactor authentication enabled.

The hackers “tailored their password spray attacks to a limited number of accounts, using a low number of attempts to evade detection and avoid account blocks based on the volume of failures,” according to a Microsoft blog post published late Thursday.