Hostile Time: When the Clock Lies in Critical OT
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Hostile Time: When the Clock Lies in Critical OT
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About this listen
We are back with another episode of Cybersecurity Under Pressure. Real Attacks, Real Lessons, diving into one of the most insidious vectors in operational technology: hostile time. At 06:05, a rail control room gets a burst of alarms, but the chronological sequence is physically impossible. The interlocking system reports an input changing after the command that supposedly triggered it. Time synchronization is a physical operational dependency, not a forensic luxury. Today, we unpack the physics of attacks that introduce asymmetric network delays to silently shift clocks. Join us as we discuss establishing hard drift limits that trigger deterministic safe modes, and how to protect safety-relevant sequences using causality and Byzantine fault-tolerant state machines.