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2. Hikvision - Wikipedia

   en.wikipedia.org/wiki/Hikvision

   In 2021, Best Buy, Home Depot, and Lowe's stopped selling cameras from Hikvision brand Ezviz due to concerns about Hikvision's complicity in surveillance and human rights violations in Xinjiang. [15] In 2022, Hikvision was awarded a Chinese government contract to develop software to track "key people" in order to prevent them from entering Beijing.

3. HDcctv - Wikipedia

   en.wikipedia.org/wiki/HDcctv

   [1] [2] [3] HDcctv uses the SMPTE HD-SDI protocol and can transmit 720p or 1080p video over at least 100 m of RG59 cable. The HDcctv Alliance is a non-profit, global consortium that develops and promotes the HDcctv standard. Advantages over IP video surveillance are claimed to include low latency and zero configuration.

4. Home security - Wikipedia

   en.wikipedia.org/wiki/Home_security

   Door and window sensors are also implemented in most home security systems. One part of the system is installed on the door or window itself while the other part is installed on the frame of the door or window. The two part system connects securely when a door or window is closed, creating a security circuit. [5]

5. Wireless security camera - Wikipedia

   en.wikipedia.org/wiki/Wireless_security_camera

   Currently, the majority of wireless security cameras operate on the 2.4 GHz frequency. Most household routers, cordless phones, video game controllers, and microwaves operate on the 2.4 GHz frequency and may cause interference with a wireless security camera. The main difference between 2.4 and 5 GHz frequencies is range.

6. Dahua Technology - Wikipedia

   en.wikipedia.org/wiki/Dahua_Technology

   In March 2017 a backdoor into many Dahua cameras and DVRs was discovered by security researchers working for a Fortune 500 company. [71] The vulnerability had been activated on cameras within the Fortune 500 company's network, and the data trafficked to China through the company's firewall. [ 72 ]

7. Closed-circuit television - Wikipedia

   en.wikipedia.org/wiki/Closed-circuit_television

   The system is used by Chicago's Office of Emergency Management in case of an emergency call: it detects the caller's location and instantly displays the real-time video feed of the nearest security camera to the operator, not requiring any user intervention. While the system is far too vast to allow complete real-time monitoring, it stores the ...