Book excerpt recounting Mark Klein's disclosure to the EFF about Room 641A, the NSA surveillance facility hidden in AT&T's San Francisco data center. Foundational account of government mass surveillance infrastructure and the whistleblower who exposed it.
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How Mark Klein told the EFF about Room 641A [book excerpt]
Mark Klein's disclosure of Room 641A exposed AT&T's secret partnership with the NSA, revealing how mass surveillance infrastructure was hidden inside a major carrier's data center.
Friday, May 1, 2026 12:00 PM UTC2 MIN READSOURCE: Hacker NewsBY sys://pipeline
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