AT&T technician Mark Klein, who exposed secret NSA spying, dies
Klein, a former AT&T technician turned whistleblower, exposed mass surveillance by the U.S. government in 2006.
Mark Klein, AT&T technician who helped expose NSA spying, dies at 79
In 2006, he shared corporate documents showing how the National Security Agency was accessing internet data through a secret room in an AT&T office building.
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Mark Klein has died
The unlikely hero who stood up to the government Mark Klein, the AT&T technician who blew the whistle on one of the most ...
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AT&T technician Mark Klein, who exposed secret NSA spying, dies
TechCrunch · Image Credits:Mark Klein / Wikimedia Commons (opens in a new window) under a CC BY-SA 3.0 (opens in a new window) license. Mark Klein, a former AT&T technician turned whistleblower ...