Federal agencies given five days to find hacked Exchange servers
CISA, the US Department of Homeland Security’s Cybersecurity and Infrastructure Security Agency, has told federal agencies that they have until 12:00pm EDT on Monday April 5 to scan their networks for evidence of intrusion by malicious actors, and report back the results. CISA is ordering agencies with on-premises Microsoft Exchange servers to urgently conduct the scans following widespread exploitation of vulnerabilities, in fear that some compromises may have remained undetected.