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2. Radio scanner - Wikipedia

   en.wikipedia.org/wiki/Radio_scanner

   A scanner (also referred to as a radio scanner) is a radio receiver that can automatically tune, or scan, two or more discrete frequencies, stopping when it finds a signal on one of them and then continuing to scan other frequencies when the initial transmission ceases. The term scanner generally refers to a communications receiver that is ...

3. Stingray phone tracker - Wikipedia

   en.wikipedia.org/wiki/Stingray_phone_tracker

   The StingRay is an IMSI-catcher with both passive (digital analyzer) and active (cell-site simulator) capabilities. When operating in active mode, the device mimics a wireless carrier cell tower in order to force all nearby mobile phones and other cellular data devices to connect to it. [ 9][ 10][ 11] The StingRay family of devices can be ...

4. Police radio - Wikipedia

   en.wikipedia.org/wiki/Police_radio

   Police radio. Police radio is a radio system used by police and other law enforcement agencies to communicate with one another. Police radio systems almost always use two-way radio systems to allow for communications between police officers and dispatchers . Most modern police radio systems are encrypted, and many jurisdictions have made ...

5. A new technique can detect newer 4G 'stingray' cell phone ...

   techcrunch.com/2020/08/05/crocodile-hunter-4g...

   Newer cell site simulators, called “Hailstorm” devices, take advantage of similar flaws in 4G that let police snoop on newer phones and devices. Some phone apps claim they can detect stingrays ...

6. How hackers are using Bluetooth to track police activity

   www.engadget.com/how-hackers-are-using-bluetooth...

   In the case of body cams, if the device begins recording, it typically sends a Bluetooth signal out to other devices. If a cop turns on a camera (or Taser or other IoT device), someone running the ...

7. Amid protests, US police scanner apps and others saw record ...

   techcrunch.com/2020/06/01/amid-protests-u-s...

   Signal was downloaded nearly 37,000 times over the weekend and Citizen was installed over 48,000 times, the firm found. On Sunday, both apps broke new records for single-day downloads in the U.S ...