Which metric measures how long it takes a security team to detect a cybersecurity incident?

MTTD, or mean time to detect, measures how long it takes a security team to discover a cybersecurity incident or suspicious activity. A lower MTTD indicates that detection controls, monitoring processes, alert quality, and analyst workflows are working effectively. MTTD is important because attackers often cause more damage the longer they remain undetected. MTTR, or mean time to respond or recover, measures how long it takes to respond to or recover from an incident after detection. MFA is multi-factor authentication, an identity security control used to strengthen login security. NAT is network address translation, which converts one IP address to another. Security operations teams use metrics such as MTTD and MTTR to evaluate SOC performance, improve alerting, tune detection logic, and reduce operational delays. Strong logging, SIEM correlation, endpoint telemetry, threat intelligence, and automation can help reduce detection time. Reference/topics: Security Operations, SOC metrics, MTTD, MTTR, incident detection and response.