FERC Approves NERC CIP-015-2: What It Means for Your INSM Program

The Federal Energy Regulatory Commission approved NERC Reliability Standard CIP-015-2, expanding internal network security monitoring (INSM) to cover EACMS, PACS, and SCI for High and Medium Impact BES Cyber Systems with External Routable Connectivity; the report links this regulatory change to observed adversary behaviors (named threat groups and reconnaissance/persistence activity) that threaten OT environments and outlines phased enforcement dates plus practical implementation recommendations for utilities.