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CoreShift

Built at Meta Global AI Developer Hackathon · Oct 26, 2026 · Remote

CoreShift — Demo video

Second Voice — Stop the Scam Before the Money Moves. Scammers exploit human psychology, creating fear, urgency, and isolation to force decisions before victims can think clearly. Second Voice intervenes at that critical moment. It analyzes call transcripts to identify manipulation, suspicious requests, and impersonation, citing exact evidence. Claims are verified against trusted sources via WebSearch grounding. Instead of another warning, users get actionable choices: verify through official channels or involve a trusted Safety Ally via WhatsApp. If money is already lost, Second Voice prepares a recovery packet and cybercrime report. Our working prototype demonstrates this intelligence, with native Android integration envisioned for production. Caller ID tells you who's calling. Second Voice helps you decide what to do next. The repository also contains a User Guide and sample transcripts against which you can test the prototype.

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