Cybersecurity

Microsoft Warns of New Threat Against Unpatched Networks

  • Hackers capitalizing on businesses yet to fix vulnerabilities
  • Company has detected and blocked a ‘new family of ransomware’

Microsoft  discovered hackers were exploiting previously unknown vulnerabilities in Microsoft’s widely used Exchange business email software earlier in March.

Photographer: Mark Kauzlarich/Bloomberg
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Microsoft Corp. has detected and blocked a “new family of ransomware” that was being used against servers that still hadn’t patched vulnerabilities after last week’s major security breach.

The updates it released on Friday are a temporary measure to defend against attacks, which were already occurring in many places, the company said.