Back to today’s briefing

Story perspectives

Microsoft Warns: Upgrade Exchange Servers by 2025!

1/25/2025

47 7

Summary

Microsoft Warns Users

Microsoft has issued a critical warning: outdated Exchange servers will be cut off from emergency support starting January 2025 due to an expired certificate. To safeguard against cyber threats and maintain email security, users must upgrade to versions released after March 2023. Regular updates are vital for protection.

Summary

Salt Typhoon Exploits Vulnerability

A staggering 91% of nearly 30,000 Microsoft Exchange Servers are still exposed to the ProxyLogon vulnerability, even after a 2021 patch. The Chinese state-backed group Salt Typhoon is actively exploiting these unpatched systems. Experts urge organizations to prioritize regular updates to safeguard against these relentless cyber threats.

History

Historical Context

Microsoft's warning about outdated Exchange servers reflects ongoing cybersecurity challenges. In 2021, the ProxyLogon vulnerability exposed many systems, leading to widespread exploitation by state-backed groups. Similar to past incidents, such as the 2017 Equifax breach, failure to update software can have severe consequences, emphasizing the critical need for timely upgrades to protect sensitive data and maintain security.

1 of 3

Microsoft Warns Users

Microsoft has issued a critical warning: outdated Exchange servers will be cut off from emergency support starting January 2025 due to an expired certificate. To safeguard against cyber threats and maintain email security, users must upgrade to versions released after March 2023. Regular updates are vital for protection.

1 / 3