MTTD (Mean Time to Detect) and MTTR (Mean Time to Respond) are key cybersecurity metrics that measure how quickly an organization identifies and addresses security threats. MTTD tracks the average time it takes to detect a threat after it occurs, while MTTR measures the average time needed to contain, mitigate, or resolve the threat once it has been detected. Lower MTTD and MTTR values indicate a faster, more effective response to cyber incidents, helping to minimize potential damage and downtime. These metrics are essential for evaluating and improving an organization's security posture and incident response processes.