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2. Anti-hijack system - Wikipedia

   en.wikipedia.org/wiki/Anti-hijack_system

   An anti-hijack system is an electronic system fitted to motor vehicles to deter criminals from hijacking them. Although these types of systems are becoming more common on newer cars, they have not caused a decrease in insurance premiums as they are not as widely known as other more common anti-theft systems such as alarms or steering locks .

3. Immobiliser - Wikipedia

   en.wikipedia.org/wiki/Immobiliser

   The electric immobiliser/alarm system was invented by St. George Evans and Edward Birkenbuel and patented in 1919. [2] They developed a 3x3 grid of double-contact switches on a panel mounted inside the car so when the ignition switch was activated, current from the battery (or magneto) went to the spark plugs allowing the engine to start, or immobilizing the vehicle and sounding the horn. [3]

4. Security alarm - Wikipedia

   en.wikipedia.org/wiki/Security_alarm

   Reed Switch. The hermetically sealed reed switch is a common type of two-piece sensor. This switch operates with an electrically conductive switch that is either normally open or normally closed when under the influence of a magnetic field in respect to proximity to the second piece, which contains a magnet. When the magnet moves away from the ...

5. Anti-theft system - Wikipedia

   en.wikipedia.org/wiki/Anti-theft_system

   Anti-theft systems protect valuables such as vehicles and personal property like wallets, phones, and jewelry. [1] [2] [3] They are also used in retail settings to protect merchandise in the form of security tags and labels. [4] Anti-theft systems include devices such as locks and keys, RFID tags, and GPS locators.

6. SecuriLock - Wikipedia

   en.wikipedia.org/wiki/SecuriLock

   SecuriLock, also known as Passive Anti-Theft System (PATS), is an immobilizer technology that Ford began using select Ford as well as Lincoln, and Mercury models. Each key have a radio frequency transponder embedded in the plastic head with a unique electronic identification code.

7. Outlawed anti-drone radio jammers are being marketed on ... - AOL

   www.aol.com/news/anti-drone-companies-market...

   The potential market for anti-drone systems such as radio frequency jammers includes large corporations and organizations that are worried about drone terrorism but are not legally allowed to use ...