# Meta — How We’re Building Scam Alert on WhatsApp With End-to-End Encryption and Verifiability Guarantees

- Company: Meta (meta.com)
- Announced: 2026-08-12T13:00:28+00:00
- Category: availability-change
- Subject: Llama / infrastructure
- Open weights: yes
- Source: https://engineering.fb.com/2026/08/12/security/how-were-building-scam-alert-whatsapp/
- Record: https://forck.live/items/3733-how-we-re-building-scam-alert-on-whatsapp-with-end-to-end-encryption-and

WhatsApp is introducing Scam Alert, an optional on-device ML feature that detects scam messages without sending any message content to servers, using a transparent model that can be independently verified.

## Evidence

Verbatim from https://engineering.fb.com/2026/08/12/security/how-were-building-scam-alert-whatsapp/:

> an early look at Scam Alert, a new, optional feature that runs an on-device machine learning model to alert a user about potential scam messages.

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Record: https://forck.live/items/3733-how-we-re-building-scam-alert-on-whatsapp-with-end-to-end-encryption-and
Catalogue: https://forck.live/llms.txt
Feed: https://forck.live/feed.md