A SOC, or Security Operations Center, is the team and the function that monitors and defends an organization's systems around the clock. Security analysts watch dashboards and alerts, investigate anything suspicious, and respond to incidents as they happen.

The SOC is the heart of a strong security posture, but staffing one 24/7 is costly. Because of this, many managed service providers operate a SOC and sell it as a service, which is where Managed Detection and Response comes in. It gives you a security team watching your network without the cost of hiring one.