Critical Information Infrastructures Security: ... Apr 2026

The "air-gapped" isolation of the past is gone. Today’s threat landscape is defined by five structural realities that are reshaping resilience priorities:

: Persistent actors like "Volt Typhoon" maintain long-term access inside infrastructure, using "living-off-the-land" (LOTL) techniques to stay undetected and ready for activation during a future crisis. Critical Information Infrastructures Security: ...

: Over 97% of identity-based attacks target password-based authentication. Attackers now use legitimate credentials to bridge the gap between enterprise IT and operational technology (OT). The "air-gapped" isolation of the past is gone

Protecting CII is complicated by several inherent weaknesses in how these systems were built and maintained: Key competencies for critical infrastructure cyber-security Critical Information Infrastructures Security: ...