By monitoring our every movement hundreds of thousands of times a day, our smartphones, the websites we use and CCTV cameras are harvesting priceless information about our lives – and much of it is stored in . It is a chilling thought.A cybersecurity firm showed last week how the Chinese-owned video-sharing app has software that can gain access to our innermost secrets. It’s the latest and most worrying example of how technology tracks us 24 hours a day, presenting a colossal threat to our civil liberties and national security.It’s impossible to know how your data is being used. And it’s just as difficult to try to work out how much big business is making out of it all.
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