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Read on for 30 of the most powerful private security companies in the world. Originally going under the name Blackwater USA, American private military company ACADEMI was established in 1997 by ex U. S.
Navy SEAL Erik Prince. Blackwater was awarded its first government contract in 2000, and in order for the company to fulfill it,
more than 100,000 sailors were trained for action. Blackwater was heavily – and controversially – involved in the Iraq War.
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A word about wireless protocols: In a perfect world, all home security components would use the same wireless standard to communicate with the main hub, but factors such as power requirements, signal range, price, and size make it virtually impossible to settle on just one. For example, smaller components such as door/window sensors typically use Z Wave or Zigbee technology because they don't require a lot of power and can be powered by smaller batteries. They also operate in a mesh topology and can help extend the range of networked devices. However, neither protocol provides the bandwidth that you get with Wi Fi, which is why it is usually used in security cameras to provide smooth video streaming, and in other devices that require a fat pipe. Moreover, Z Wave and Zigbee devices are connected and controlled using a hub, while Wi Fi devices can be connected
directly to your home network and controlled with an app. Finally, Z Wave and Zigbee devices use AES 128 encryption, and since they operate in a closed system with a
dedicated hub, they offer more security than Wi Fi devices.