Can you hear me now?: NSA can find & track people with ‘voice-matching technology’

Declassified documents reveal the National Security Agency has been using secret “speaker recognition” technology to identify people by their unique “voiceprint” for more than a decade.

The NSA has been recording and gathering private phone calls for years, but it used to be difficult for the agency to identify unknown speakers. In the past, signals intelligence (SIGINT) transcribers worked on the same targets for years before they became familiar enough with a speaker’s unique voice to be able to verify their identity.

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