Mark Klein

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Person.png Mark Klein  Rdf-entity.pngRdf-icon.png
ExposedMass Surveillance

Mark Klein is a former AT&T technician who leaked knowledge of his company's cooperation with the United States NSA in installing network hardware to monitor, capture and process American telecommunications. The subsequent media coverage became a major story in May 2006.

In recognition of his actions, the Electronic Frontier Foundation picked Klein as one of the winners of its 2008 Pioneer Awards.[1]

For over 22 years Mark Klein worked for AT&T. Starting with the company as a Communications Technician in New York, where he remained from November 1981 until March 1991, he later continued in that capacity in California until 1998. From January 1998 to October 2003, Klein worked as a Computer Network Associate in San Francisco. From October 2003 to May 2004 he returned to the role of Communications Technician, after which he retired in May 2004.[2]

See also


  1. AT&T Whistle-Blower Among Award Winners - Newsvine 27 Feb 2008
  2. Declaration of Mark Klein - Unredacted (June 8, 2006) EFF

External links