An aircraft theft protection apparatus has two mating parts that encapsulate an electrical power connecter when the power connector is removed from the aircraft's power source. When the power connector is removed the electrical power to the aircraft is interrupted preventing the aircraft from starting its engines. When encapsulated a pin lock having a non duplicating key locks the two parts together preventing the power connector to be reconnected to the aircraft's power source. When the two mating parts are fitted together a unique space is provided which allows the power connector to fit therein.

An indicating device for indicating a non-authorized opening of an aircraft door comprising a sensor for detecting a distance from the sensor to an object, a signaling device, a reset device coupled to the signaling device allowing the signaling device to be set into a first state following a reset operation, an enabling device, providing as an output signal, selectively, a disable signal and an enable signal, and a control device connected to the sensor, the signaling device and the enabling device. On receiving the disable signal, the control device changes into a first operating mode and on receiving the enable signal it changes into a second operating mode in which, based upon the signal received from sensor, it detects a distance change between the sensor and the object, and, on detecting a change, sets the signaling device into a second state until the reset operation is completed.

Described herein are systems and methods using a security key for an unmanned aerial vehicle. For example, some methods include during flight of an unmanned aerial vehicle, encrypting, using a public key stored by the unmanned aerial vehicle, a symmetric key that is used to encrypt media data captured using one or more sensors of the unmanned aerial vehicle to obtain encrypted media data; landing the unmanned aerial vehicle; connecting a key device to the unmanned aerial vehicle via a serial port connector of the key device and a serial port connector of the unmanned aerial vehicle; while the key device is connected to the unmanned aerial vehicle, decrypting, using a private key stored on the key device, the encrypted symmetric key, which in turn is used to decrypt a portion of the encrypted media data to obtain decrypted media data; and transmitting a portion of the decrypted media data.

Described herein are systems and methods using a security key for an unmanned aerial vehicle. For example, some methods include during flight of an unmanned aerial vehicle, encrypting, using a public key stored by the unmanned aerial vehicle, a symmetric key that is used to encrypt media data captured using one or more sensors of the unmanned aerial vehicle to obtain encrypted media data; landing the unmanned aerial vehicle; connecting a key device to the unmanned aerial vehicle via a serial port connector of the key device and a serial port connector of the unmanned aerial vehicle; while the key device is connected to the unmanned aerial vehicle, decrypting, using a private key stored on the key device, the encrypted symmetric key, which in turn is used to decrypt a portion of the encrypted media data to obtain decrypted media data; and transmitting a portion of the decrypted media data.