A Managed Security Service Provider (MSSP) is a specialized company that delivers managed cybersecurity services to protect other organizations. Instead of each company deploying and maintaining its own defenses, the MSSP continuously monitors, detects, and responds to threats on their behalf.
MSSPs offer 24/7 monitoring through Security Operations Centers (SOCs), firewall management, protection against malware and phishing, vulnerability assessments, event correlation using SIEM platforms, and early incident response. Some also include threat intelligence and advanced services such as XDR.
It enables organizations to access expert, up-to-date security protection without the need for major internal investments in staff and technology. This helps reduce risk, ensure compliance with security regulations, and maintain business continuity with greater confidence against increasingly sophisticated cyberattacks.