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China is to use quantum cryptography to create an “unhackable” communications network. Using the network, some 200 users from the military, government, finance and electricity sectors will be able to send messages without the concern that others may be able to read them.
In the past few years, some business owners or managers have remotely monitored from the comfort of home and while traveling by using a video system installed by a security integrator or off-the-shelf equipment designed for do-it-yourself installation and management. Many bar and restaurant owners have been doing this for some time.
