A drone is an unmanned aircraft operated remotely or with limited onboard automation. In security and defense, drones depend on radio links, GPS or other navigation sources, embedded firmware, and ground-control software. That makes them both useful and vulnerable: attackers can jam control signals, spoof navigation, intercept telemetry, or target poorly secured update paths and supply chains.
Drone security matters because the aircraft is only one part of the system. The command link, software, sensors, and operator workflow all affect trust and safety. In real operations, defenders use drones for reconnaissance, perimeter checks, and incident response, while attackers use them for surveillance, smuggling, or physical reconnaissance. Securing drones means hardening communications, verifying firmware, limiting access to control stations, and monitoring for interference or unauthorized control.