Managed Detection and Response (MDR)

Managed Detection and Response (MDR) is a security service in IT security in which external specialists – and increasingly also AI agents – monitor and investigate threats and support the response. The approach is aimed particularly at organizations that do not want to or cannot build a complete 24/7 SOC structure themselves.

MDR combines technology with human expertise, for example for triage, Threat Hunting, escalation and recommendations for action; the role of AI agents in this is described in the entry Agentic SOC. This is particularly valuable when internal teams are heavily utilized or have only limited experience with complex attacks. Good MDR services – usually obtained as Managed Services – do not only work reactively, but also provide a proactive view of vulnerabilities, attack patterns and optimization potential. For mid-sized companies, MDR is often a pragmatic way to establish more professional detection and response. Close coordination between the service provider and the internal team nevertheless remains important, especially for escalations and responsibilities. MDR is thus less a substitute for security governance than an operational reinforcement. Operationally, automated attack detection helps to separate relevant signals from less critical events more quickly.

See also: Incident Response.