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U.S. Sees Progress in Closing Microsoft Exchange Vulnerabilities

  • Global attack with many victims blamed on Chinese hackers
  • Biden administration had pushed companies for quick patches
Microsoft Unveils New Surface Laptop

Photographer: Drew Angerer/Getty Images

A new tool developed by Microsoft Corp. to contain damage from a massive hack of its email server software has helped to reduce the number of vulnerable entities in the last week, according to a National Security Council spokesperson.

The tool was created by the technology giant after recent discussions with the White House. Anne Neuberger, the deputy national security adviser for cyber and emerging technology, worked with Microsoft to find a simple solution for smaller businesses facing time consuming and difficult cleanup of the hack, the spokesperson said.