Cybersecurity
Thousands of Microsoft Exchange Servers Still Compromised After Patches
- CISA’s Brandon Wales warns that servers still vulnerable
- Warning comes amid fears of ransomware attacks on networks
Photographer: Jeenah Moon/Getty Images
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Thousands of Microsoft Exchange servers are still compromised by hackers even after applying fixes, a top U.S. cybersecurity official said Monday, citing data from cybersecurity companies.
Brandon Wales, acting director of the Cybersecurity and Infrastructure Security Agency, said owners of the email servers that were compromised before Microsoft Corp. issued a patch nearly three weeks ago must take additional measures to remove the hackers from their networks.