This Fortinet white paper examines the growing threat to OT systems from advanced cyberattacks. As IT and OT networks converge, traditional air-gapped protections erode, exposing legacy OT devices to modern threats. The paper highlights real-world attacks like Industroyer and TRITON, showing how malware exploits weak points in protocols (OPC, BACnet, Modbus) and evades detection. It warns that OT breaches can halt production, endanger lives, and cause massive financial loss. CISOs are urged to adopt advanced threat detection, better segmentation, and incident response strategies to secure their critical OT infrastructure.

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