Managed security service (MSS) is various cybersecurity services and assistance, like managing and monitoring firewalls and intrusion detection systems; performing penetration and vulnerability assessments and audits as well as overseeing the management of patches and upgrades as well as assisting in establishing rules and protocols that help decrease the chance of a data breach. MSS providers also provide cybersecurity expertise and assistance with regulatory compliance requirements such as HIPAA, PCI DSS, SOX, GLBA, and ISO.

Premium MSS solutions incorporate technologies like security information and events management (SIEM), cloud access security brokers and container security. Many of the top MSSPs provide 24/7 monitoring of their security operations centers as well as threat intelligence to improve the context, and proactive threat hunts.

MSS may also help their clients prioritize vulnerabilities and determine the impact on business functions like availability and performance. This helps to avoid costly cyberattacks and improve their overall security position.

In addition to offering cybersecurity solutions, many of the most reputable MSSPs offer a complete range of managed IT services, including remote monitoring of networks, remote support and security policy development. They provide a centralized dashboard that allows them to look at all the devices and applications of their clients. They also offer backup and recovery services to safeguard data if an incident occurs. They may also aid with the protection of data and governance using tools such as encryption and data loss prevention.