Jeremy Scahill and Josh Begley, The Great SIM Heist: How Spies Stole the Keys to the Encryption Castle. The Intercept, 19 February 2015. “American and British spies hacked into the internal computer network of the largest manufacturer of SIM cards in the world, stealing encryption keys used to protect the privacy of cellphone communications across the globe, according to top-secret documents provided to The Intercept by National Security Agency whistleblower Edward Snowden. The hack was perpetrated by a joint unit consisting of operatives from the NSA and its British counterpart Government Communications Headquarters, or GCHQ. The breach, detailed in a secret 2010 GCHQ document, gave the surveillance agencies the potential to secretly monitor a large portion of the world’s cellular communications, including both voice and data.”
Operation Auroragold: How the NSA Hacks Cellphone Networks Worldwide
Ryan Gallagher, Operation Auroragold: How the NSA Hacks Cellphone Networks Worldwide. The Intercept, 4 December 2014. “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 Secret War: General Keith Alexander’s secret army
James Bamford, The Secret War. Wired, 12 June 2013. “NSA Snooping Was Only the Beginning. Meet the Spy Chief Leading Us Into Cyberwar…. Infiltration. Sabotage. Mayhem. For years, four-star General Keith Alexander has been building a secret army capable of launching devastating cyber attacks. Now it’s ready to unleash hell.”