How the MS-ISAC Got to Work After the Discovery of Log4Shell

In December 2021, the Log4Shell vulnerability in Apache Log4j exposed countless systems worldwide, creating an immediate and widespread threat to public-sector networks. Its ease of exploitation forced SLTT organizations to quickly assess risk, secure systems, and maintain critical operations under pressure.

This case study explores how the Multi-State Information Sharing and Analysis Center rapidly mobilized with guidance, threat intelligence, and coordinated support to help members identify vulnerabilities, mitigate risk, and sustain operational continuity.