Small drones approaching ships, ports and coastal installations create a difficult defensive problem. They can fly low, ...

Computer vision can help a drone recognize that it is looking at a vehicle, building or person, but recognition is not the ...

Speakers have a basic privacy problem: sound spreads. Play music, an announcement or a conversation aloud, and people nearby ...

SIM cards are normally treated as trusted components whose main job is to connect a device to a cellular network. New ...

Modern ships depend heavily on satellite navigation, creating a vulnerability when GPS and other GNSS signals are jammed, spoofed or unavailable. In a contested maritime environment, losing those ...

Electronic warfare equipment can help aircraft detect hostile emitters, recognize threats and protect themselves from ...

As more satellites enter orbit, simply knowing where every object is located is becoming increasingly difficult, and location ...

Stealth aircraft are designed primarily to make radar detection more difficult, creating an ongoing challenge for the sensors ...

Airport security depends on finding dangerous materials without bringing passenger movement to a halt. Liquids remain one of the most visible compromises: travelers are generally limited to containers ...

Some computing problems become difficult not because any individual calculation is particularly complicated, but because ...

Precision artillery has become increasingly dependent on satellite navigation, creating an obvious vulnerability on ...

Finding a submarine beneath the ocean is one of the more difficult surveillance tasks in modern warfare. Sonar and sonobuoys can listen for underwater activity, while maritime patrol aircraft cover ...