MSSP (Managed Security Service Provider)
Also known as: Managed Security Provider, Security MSP
A managed service provider specializing in security operations, threat monitoring, incident response, and compliance management.
A managed security service provider (MSSP) is a specialized form of managed service provider focused exclusively on cybersecurity. MSSPs operate security operations centers (SOCs) that monitor customer environments 24/7 for threats, handle security incidents, manage security tooling, and provide compliance reporting. MSSPs differ from general MSPs in that security is their core competency rather than a secondary service. For organizations that cannot staff a full internal security team, an MSSP provides enterprise-grade security monitoring and response at a predictable cost.