Managed Security Service Provider (MSSP)

A Managed Security Service Provider (MSSP) is a third-party company that provides outsourced monitoring and management of security systems and processes. MSSPs offer services like 24/7 security monitoring, vulnerability management, firewall management, intrusion detection, and incident response — capabilities that many small and mid-size contractors can't build internally.

For defense contractors without large security teams, an MSSP can help meet CMMC monitoring and response requirements cost-effectively. However, you must ensure your MSSP handles CUI appropriately and that their services are included in your assessment scope.