Utilities Need Test Bed to Evaluate Legacy Industrial Control System Cybersecurity Technologies

摘要

Industrial control systems (ICSs) are technologically and administratively different than information technology (IT) systems. ICSs are purpose-built systems engineered for highly reliable operations in harsh settings 24/7/365 and operate like a well-engineered clock. They often use older, resource-constrained systems and devices. They are deterministic systems that must function precisely within well-defined and regulated periods often within tens to hundreds of milliseconds. Drifting beyond that precise cycle time through variations of latency can lead to denial-of-service or worse.