Through its partnership with Czech defence manufacturer STV Group, Post-Quantum recently demonstrated the first airborne deployment of Classic McEliece. The programme resulted in the world’s first battlefield-ready quantum-safe drones operating in the most challenging DDIL (Denied, Degraded, Intermittent, or Limited) environments. The drones were successfully tested at STV’s weapons facility – dispelling the myth that the algorithm’s large keysize is impractical for real-world deployment.