Meta· Llama / infrastructureAvailability change

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

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.

From the source

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.

engineering.fb.com

Announced

12 Aug 2026 13:00 UTC

Detected

14 Aug 2026 13:13 UTC (+2d after)