Recent data from security researchers indicates that nearly 22,000 Microsoft Exchange servers exposed to the internet remain vulnerable to critical hijack attacks. These systems lack essential security patches, leaving them susceptible to exploits that could allow threat actors to gain unauthorized access or execute remote code on affected infrastructure.
The findings, primarily highlighted by the Shadowserver Foundation, emphasize the ongoing risk of unpatched Exchange environments being targeted for data exfiltration and ransomware deployment. Administrators are urged to immediately apply the latest cumulative updates and enable features like Extended Protection to mitigate these significant security risks.
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