Electric utilities rely on real-time OT data for monitoring, maintenance, and grid optimization, but integrating OT with IT environments increases cyber risk by exposing critical systems to ransomware, malware, and other attacks. To maintain safety and reliability, utilities need a secure way to enable remote access and data transfer without introducing inbound threat paths. Hardware-enforced one-way security, such as protocol-filtering diodes, provides high-speed, physically enforced OT‑to‑IT data flow while blocking all incoming traffic. This approach ensures resilient operations, preserves system integrity, and protects essential infrastructure from cyber threats.

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