![Data collection / Intelligence / Intelligence gathering disciplines / Cryptography / Military intelligence / GSM / National Security Agency / A5/1 / National security / Espionage / Signals intelligence Data collection / Intelligence / Intelligence gathering disciplines / Cryptography / Military intelligence / GSM / National Security Agency / A5/1 / National security / Espionage / Signals intelligence](https://www.pdfsearch.io/img/aa0a150eac9d619ae31f347443b3b059.jpg)
| Document Date: 2013-12-11 10:26:47 Open Document File Size: 326,47 KBShare Result on Facebook
Country United States / / Facility GSM Cell Towers / / IndustryTerm digital signal processors / mobile cellular communications / collection software / telecommunications infrastructure / government equipment / / Organization National Security Agency / No association / In association / / Person Matt DeLong / / PublishedMedium Washington Post / / Technology digital signal processors / SMS / GSM / mobile device / / URL http /
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