A novel attack method has been disclosed against a crucial piece of technology called time-triggered ethernet (TTE) that’s used in safety-critical infrastructure, potentially causing the failure of systems powering spacecraft and aircraft. Dubbed PCspooF by a group of academics and researchers from the University of Michigan, the University of Pennsylvania, and the NASA Johnson Space Center, the technique is designed to break TTE’s security guarantees and induce TTE devices to lose synchronization for up to a second, a behavior that can even lead to uncontrolled maneuvers in spaceflight missions and threaten crew safety.

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