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:

Critical Information Infrastructure (CII) refers to the computer resources, networks, and digital assets so vital that their incapacitation or destruction would have a debilitating impact on national security, the economy, public health, or safety. As we move further into 2026, these systems—ranging from electrical grids and water treatment plants to financial networks and telecommunications—are facing an unprecedented era of disruption. 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

: The objective has shifted from simple data theft to taking systems offline. Attack campaigns targeting CI surged by 87% in early 2025 . : Over 97% of identity-based attacks target password-based