Klein, a former AT&T technician turned whistleblower, exposed mass surveillance by the U.S. government in 2006.

The Electronic Frontier Foundation (EFF) recently announced the passing of Mark Klein, the AT&T whistleblower who exposed the ...

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

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.

In 2006 the AT&T whistleblower exposed a secret room inside the company that routed network traffic to the NSA, leaking ...

Tulsi Gabbard, the director of national intelligence, has long held anti-surveillance views. Now she oversees a key ...

The US National Security Agency’s mass surveillance is a trade barrier for European Internet companies trying to provide services in the United States, a top EU official said yesterday (8 December).

The unlikely hero who stood up to the government Mark Klein, the AT&T technician who blew the whistle on one of the most ...

Seven years after former National Security Agency contractor Edward Snowden blew the whistle on the mass surveillance of US’ telephone records, an appeals court has found the program was ...

President Donald Trump has vowed to target his political enemies, and experts have warned that he could weaponize U.S.