WhatsApp is testing a new warning for scam messages

Meta announced it’s rolling out a new feature for WhatsApp users in the fight against scammers.

Scam Alert is an optional beta feature that uses an on-device machine-learning model to flag likely scam messages from people who are not in a user’s contacts.

The Scam Alert feature arrives as scammers increasingly use WhatsApp for impersonation, fake jobs , fake sales , investment fraud, romance baiting, malicious links, and payment requests. These campaigns often begin on another platform before moving victims into a private chat, where criminals can apply pressure and build trust.

Once enabled, Scam Alert downloads a machine-learning model to the device and examines incoming messages from non-contacts for patterns associated with scams. WhatsApp says the model uses linguistic signals and conversational structure learned from scam conversations previously reported by users.

It is a meaningful new defensive layer, but it will not block anything. Instead, it alerts the user to stop and think carefully before engaging with the sender.

There’s another important limitation: some of the most effective WhatsApp scams arrive from a compromised contact, such as the recent “ vote for my friend ” account-takeover campaign. Because the message appears to come from someone the victim already knows, an unknown-sender warning may never appear.

Scam Alert is another step in Meta’s anti-scam campaign across WhatsApp, Facebook, and Messenger to fight sophisticated fraud tactics.

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If the model identifies what might be a scam, WhatsApp displays a warning banner in the chat. The sender does not see the warning, so the feature should not tip off a scammer that their approach has been detected.

Users can then:

• Block the sender, preventing further messages.
• Report the chat to WhatsApp.
• Continue the conversation if they believe it is legitimate.

Meta announced it’s rolling out a new feature for WhatsApp users in the fight against scammers.

Scam Alert is an optional beta feature that uses an on-device machine-learning model to flag likely scam messages from people who are not in a user’s contacts.

The Scam Alert feature arrives as scammers increasingly use WhatsApp for impersonation, fake jobs , fake sales , investment fraud, romance baiting, malicious links, and payment requests. These campaigns often begin on another platform before moving victims into a private chat, where criminals can apply pressure and build trust.

Once enabled, Scam Alert downloads a machine-learning model to the device and examines incoming messages from non-contacts for patterns associated with scams. WhatsApp says the model uses linguistic signals and conversational structure learned from scam conversations previously reported by users.

It is a meaningful new defensive layer, but it will not block anything. Instead, it alerts the user to stop and think carefully before engaging with the sender.

There’s another important limitation: some of the most effective WhatsApp scams arrive from a compromised contact, such as the recent “ vote for my friend ” account-takeover campaign. Because the message appears to come from someone the victim already knows, an unknown-sender warning may never appear.

Scam Alert is another step in Meta’s anti-scam campaign across WhatsApp, Facebook, and Messenger to fight sophisticated fraud tactics.

Don’t recognize that number? We’ll check it.

CHECK NOW

If the model identifies what might be a scam, WhatsApp displays a warning banner in the chat.