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WhatsApp Builds On-Device Scam Alert to Flag Suspicious Messages

The tool is designed to warn users without sending message content to Meta servers so encryption is preserved.

Overview

  • The Scam Alert feature was identified in WhatsApp's Android beta code and confirmed by multiple reports on Monday, and it remains under development without a public release date.
  • The detection runs entirely on the user’s device using WhatsApp’s in-house models, which means message content is not uploaded to Meta servers and end-to-end encryption is maintained.
  • When the feature flags a message from an unknown contact it will display a banner that reads something like “This may be a scam” and give users the choice to block and report the sender or trust the chat.
  • WhatsApp is building a local transparency tool that stores logs of when Scam Alert was triggered on the device and those reports are not shared with WhatsApp or Meta.
  • The tool will be optional and disabled by default, first appearing in Android code with iOS availability unconfirmed, and its real-world impact will depend on users enabling it and on the on-device model’s accuracy.