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Hacking cellphone networks worldwide

In March 2011, two weeks before the Western intervention in Libya, a secret message was delivered to the National Security Agency. An intelligence unit within the U.S. military’s Africa Command needed help to hack into Libya’s cellphone networks and monitor text messages.”

For the NSA, the task was easy. The agency had already obtained technical information about the cellphone carriers’ internal systems by spying on documents sent among company employees, and these details would provide the perfect blueprint to help the military break into the networks.”

The NSA’s assistance in the Libya operation, however, was not an isolated case. It was part of a much larger surveillance program—global in its scope and ramifications—targeted not just at hostile countries.”

According to documents contained in the archive of material provided to The Intercept by whistleblower Edward Snowden, the NSA has spied on hundreds of companies and organizations internationally, including in countries closely allied to the United States, in an effort to find security weaknesses in cellphone technology that it can exploit for surveillance.

The documents also reveal how the NSA plans to secretly introduce new flaws into communication systems so that they can be tapped into—a controversial tactic that security experts say could be exposing the general population to criminal hackers.

Codenamed AURORAGOLD, the covert operation has monitored the content of messages sent and received by more than 1,200 email accounts associated with major cellphone network operators, intercepting confidential company planning papers that help the NSA hack into phone networks.

The AURORAGOLD operation is carried out by specialist NSA surveillance units whose existence has not been publicly disclosed: the Wireless Portfolio Management Office, which defines and carries out the NSA’s strategy for exploiting wireless communications, and the Target Technology Trends Center, which monitors the development of new communication technology to ensure that the NSA isn’t blindsided by innovations that could evade its surveillance reach. The center’s logo is a picture of the Earth overshadowed by a large telescope; its motto is 'Predict – Plan – Prevent.'”

The NSA documents reveal that, as of May 2012, the agency had collected technical information on about 70 percent of cellphone networks worldwide—701 of an estimated 985—and was maintaining a list of 1,201 email 'selectors' used to intercept internal company details from employees. ('Selector' is an agency term for a unique identifier like an email address or phone number.) From November 2011 to April 2012, between 363 and 1,354 selectors were 'tasked' by the NSA for surveillance each month as part of AURORAGOLD, according to the documents. The secret operation appears to have been active since at least 2010.”

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