Mark Klein, a former telecommunications technician for AT&T and a whistleblower, died in Oakland on Saturday at age 79 due to pancreatic cancer. Klein presented evidence from his work alleging that ...

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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Edward Snowden has lived in Russia for the past 12 years, but a pardon from Trump could see him return to his country of birth.

Edward Snowden's actions forced US intelligence agencies to admit extensive spying on their own citizens. It also exposed global surveillance operations undertaken by both the NSA and the GCHQ.

Before Edward Snowden, Mark Klein blew the whistle on NSA internet spying. Best of CES 2025 Awards ➜ We may earn a commission ...

An attorney who represents government whistleblowers on Thursday mocked Homeland Security Secretary Kristi Noem for making a ...