Makers of surveillance systems are offering governments across the world the ability to track the movements of almost anybody who carries a cellphone, whether they are blocks away or on another continent.
The technology works by exploiting an essential fact of all cellular networks: They must keep detailed, up-to-the-minute records on the locations of their customers to deliver calls and other services to them. Surveillance systems are secretly collecting these records to map people’s travels over days, weeks or longer, according to company marketing documents and experts in surveillance technology.
The world’s most powerful intelligence services, such as the National Security Agency and Britain’s GCHQ, long have used cellphone data to track targets around the globe. But experts say these new systems allow less technically advanced governments to track people in any nation — including the United States — with relative ease and precision.
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1 comment:
But when you are being monitored constantly your cell phone battery will go dead much faster.Don't just run out and have it replaced.Give it a while.Eventually they will go away and harass someone else via their cell phone.My point is that your cell phone will give you tell tale signs when it's being monitored.
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