The Numbers
Waterfall Security 2026 Threat Report: ransomware targeting OT environments declined 18%. Nation-state persistence indicators increased 40%.
-18%
Ransomware OT incidents
Year-over-year decline per Waterfall 2026
+40%
Nation-state OT persistence
Indicators of long-term access maintenance
Interpreting the Shift
The decline in ransomware and rise in persistence is consistent with a strategic reorientation from short-term exploitation to long-term positioning.
Policy Implications
Current regulatory frameworks incentivise reporting of disruptive incidents, not detection of quiet persistence.