With over 3 billion people using it, WhatsApp is among the richest hunting grounds scammers have online. According to the FTC, victims reported $425 million in losses to scams run through WhatsApp specifically — part of the more than $2.1 billion drained by social media scams in 2025.
Meta’s response comes in the form of a warning label. The company is rolling out an optional Scam Alert tool on WhatsApp, currently in a limited beta, which leans on on-device machine learning to mark suspicious messages.
What you’ll see when it fires
When the model decides a message looks like a likely scam attempt, a warning appears inside the chat. Whoever sent it never knows.
What happens next is up to you: block, report, or carry on chatting. That third choice carries more weight than it appears to, since a classifier running on a handset is bound to make mistakes.
Meta anticipated that and built in an escape hatch. Conclude that a warning is incorrectly flagged, and you can mark the chat as trusted — the alert vanishes, and Scam Alert leaves that conversation alone from then on.
The part where you feed the model
Trusting a chat also unlocks a second option. You’re able to opt in to share the last 5 messages received with WhatsApp so the feature’s accuracy can improve.
The sharing is opt-in, and it’s attached to a moment when you’ve already judged the exchange to be harmless. Even so, it’s worth knowing exactly what you’re signing up for before you tap.
Meta’s privacy claims, in its own words
According to Meta, with scam detection switched on, “no message content leaves the user device for classification,” and nothing gets “auto-reported to WhatsApp, Meta, or anyone else.”
Read closely, that’s a tighter commitment than it initially sounds. The classification never leaves the handset. Sharing is a separate step you choose to take.
Scam Alert can also be switched off whenever you want.
Not Meta’s first pass at this
This isn’t new territory for the company — it rolled out scam detection for device linking requests on WhatsApp earlier this year. Scam Alert carries that concept beyond account takeover attempts and into the chat window itself.
Looking back, the scams involved rarely seem clever: requests for wire transfers, or pig butchering setups that spend weeks establishing rapport before making the ask. Their damage comes from arriving disguised as an everyday conversation.
A model that sits on your phone and reads suspicion into a thread is a sensible defense against all that — and equally the sort of thing that will irritate you the first time it trips over a message from a contractor who has never texted you before. Switch it on once it lands on your device, watch how frequently it cries wolf, and keep in mind that the trusted-chat toggle is a single tap away.