This 2005 post from the NSA’s internal newsletter SIDToday explains how the agency overcame the obfuscation of IMSI codes by mobile phone companies: see the Intercept article NSA Used Porn to “Break Down Detainees” in Iraq — and Other Revelations From 297 Snowden Documents, 1 March 2018.
This 2009 NSA presentation, based on an internal agency newsletter article from 20 March that year, describes the growth in airlines offering onboard mobile phone services, which the Agency had alreadyu been actively collecting for at least a year: see the Intercept article American and British Spy Agencies Targeted In-flight Mobile Phone Use, 7 December 2016.
This 18 May 2010 article from the NSA internal newsletter SIDToday outlines how the agency is reacting to the growth of mobile phone services on board commercial aircraft: see the Intercept article American and British Spy Agencies Targeted In-flight Mobile Phone Use, 7 December 2016.
This undated page from GCHQ’s internal GCWiki provides a definition of “event”, the term the agency uses to refer to a metadata record, showing the variety of data collected: see the Intercept article Profiled: From Radio to Porn, British Spies Track Web Users’ Online Identities, 25 September 2015.
This undated dictionary produced by NSA Special Source Operations, provides glosses for several terms associated with the corporate partner FAIRVIEW, including the AT&T-specific term ‘SNRC’: see the New York Times article AT&T Helped U.S. Spy on Internet on a Vast Scale, 15 August 2015.
This NSA TURBULENCE presentation dated August 2009 explains the APEX method of combining passive with active methods to exfiltrate data from networks attacked: see the Der Spiegel article The Digital Arms Race: NSA Preps America for Future Battle, 17 January 2015.
On 19 July 2014 Edward Snowden appeared at the HOPE X convention in New York, in conversation with Pentagon Papers whistleblower – and Courage Advisory Board member – Daniel Ellsberg. The Freedom of the Press Foundation’s Trevor Timm put questions, many of them gathered online, to the two discussants.