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Mandiant Global Median Dwell Time Deteriorates from 11 to 14 Days
published on 2026-03-24 22:55:00 UTC by Richard BejtlichContent:
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 days was already still too much, in a world where teams need to detect and contain in an hour to be effective.
I’m not a doomer. We made amazing progress since 2011, when median global dwellers time was over 400 days. But, two bad years in a row has never happened. Before last year, the metric had always improved!
It’s possible Mandiant is just dealing with ever tougher cases. I have to dig into the full report.
https://taosecurity.blogspot.com/2026/03/mandiant-global-median-dwell-time.html
Published: 2026 03 24 22:55:00
Received: 2026 04 12 23:55:09
Feed: TaoSecurity
Source: TaoSecurity
Category: Cyber Security
Topic: Cyber Security
Views: 0
