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  2. Laser microphone - Wikipedia

    en.wikipedia.org/wiki/Laser_microphone

    [1] [2] Lavrentiy Beria, head of the KGB, had used this Buran device to spy on the U.S., British, and French embassies in Moscow. [ 2 ] On 25 August 2009, U.S. patent 7,580,533 was issued for a device that uses a laser beam and smoke or vapor to detect sound vibrations in free air ("Particulate Flow Detection Microphone based on a laser ...

  3. Covert listening device - Wikipedia

    en.wikipedia.org/wiki/Covert_listening_device

    A covert listening device, more commonly known as a bug or a wire, is usually a combination of a miniature radio transmitter with a microphone. The use of bugs, called bugging, or wiretapping is a common technique in surveillance , espionage and police investigations.

  4. High Energy Laser with Integrated Optical-dazzler and ...

    en.wikipedia.org/wiki/High_Energy_Laser_with...

    The High Energy Laser with Integrated Optical-dazzler and Surveillance (HELIOS) is a Lockheed Martin-developed 300 kilowatt high-energy laser weapon designed to intercept combat drones, fast-attack craft, and missiles. [1] After winning the contract in 2018, the first announced installation was on the USS Preble (DDG-88) in 2019. [2]

  5. Cisco says hackers subverted its security devices to spy on ...

    www.aol.com/news/cisco-says-hackers-subverted...

    Technology firm Cisco Systems said that hackers have subverted some of its digital security devices to break in to government networks globally. In a blog post published on Wednesday, the company ...

  6. Countersurveillance - Wikipedia

    en.wikipedia.org/wiki/Countersurveillance

    Countersurveillance refers to measures that are usually undertaken by the public to prevent surveillance, [1] including covert surveillance.Countersurveillance may include electronic methods such as technical surveillance counter-measures, which is the process of detecting surveillance devices.

  7. KH-11 KENNEN - Wikipedia

    en.wikipedia.org/wiki/KH-11_KENNEN

    Manufactured by Lockheed in Sunnyvale, California, the KH-11 was the first American spy satellite to use electro-optical digital imaging, and so offer real-time optical observations. [7] Later KH-11 satellites have been referred to by outside observers as KH-11B or KH-12, and by the names "Advanced KENNEN", "Improved Crystal" and "Ikon".

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