Data Diode vs Firewall: Breach-Probability Phase Diagram

Cyber-diversion attacks against industrial control systems try to smuggle unauthorized command packets from a compromised IT network into the OT network that runs physical equipment. Rather than rendering the boundary as a 3D scene, this 2D simulator exposes the two mathematical objects underneath it directly: a scrolling logic-analyzer ticker of every attack attempt's outcome at the boundary, and a phase diagram of the closed-form compounding-breach-probability curve P(≥1 breach in n attempts) = 1−(1−p)^n plotted against the firewall's per-packet leak probability p. A background Monte Carlo process independently re-derives the same curve by repeatedly drawing batches of Bernoulli trials, so you can watch the empirical rate converge onto the theoretical one live. Switch to the hardware data diode to see both the ticker and the curve collapse to zero, because there is no p to compound — the block is physical, not probabilistic.