|Headquarters of the NSA at Fort Meade, Maryland|
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Though most of the software is installed by gaining access to computer networks, the NSA can also employ technology that enters computers and alters data without needing internet access.
The secret technology uses covert radio waves transmitted from small circuit boards and USB cards clandestinely inserted into targeted computers, The New York Times reported. The waves can then be sent to a briefcase-sized relay station intelligence agencies can set up just miles away, according to NSA documents, computer experts and US officials. — RT USA
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