Mandiant Global Median Dwell Time Deteriorates from 11 to 14 Days

Oh snap. My single most important cybersecurity metric deteriorated again. In the M-Trends report for calendar year 2024, Mandiant’s global median dwell time metric worsened from 10 to 11 days. In the newest report, released today, for calendar year 2025, that metric worsened again, from 11 to 14 days. In other words, organizations are taking even longer to detect and respond to intrusions. 10…