WhatsApp is implementing a new artificial intelligence (AI) feature that operates directly on the mobile device to identify potential fraud during conversations. This system, called Scam Alert, examines messages locally and can issue a warning if the model detects characteristics of a scam attempt.
Currently, the functionality is available in a restricted beta version and is optional. According to Meta, the company responsible for WhatsApp, the purpose is to help users recognize suspicious approaches before giving out information, sending money, or taking any other actions requested by criminals.
A crucial aspect of this system is its local processing. This implies that message content does not need to be transmitted to Meta's servers for classification to occur. Meta assures that with the feature active, no message data leaves the user's device for analysis purposes.
Additionally, the company reports that no messages are automatically sent for reporting to WhatsApp, Meta, or third parties, and the user retains the freedom to disable Scam Alert at any time. This approach aims to protect communication privacy while employing machine learning models to map patterns related to scams.
Meta's Context and Concerns
Meta's concern is linked to the vast scale of WhatsApp, which exceeds three billion users globally, making it a channel frequently exploited by criminals to contact potential victims.
Types of scams include fraudulent requests for bank transfers and schemes known as 'pig butchering,' where scammers establish a bond of trust with the victim before persuading them to invest in fake opportunities or send funds.
Data provided by the U.S. Federal Trade Commission (FTC) indicates that victims reported losses of US$ 425 million (equivalent to about R$ 2.3 billion) in WhatsApp-based scams in 2025. This amount represents a fraction of the more than US$ 2.1 billion (approximately R$ 11.5 billion) lost in social media fraud during the same period.
Scam Alert is another measure adopted by Meta to prevent user losses before scams materialize. At the beginning of 2026, the company had already introduced fraud detection mechanisms related to device linking requests on WhatsApp, aiming to prevent criminals from connecting accounts to unauthorized devices.
With this, the company is now expanding the use of AI to internally analyze message content, looking for signs that may indicate a fraud attempt. However, Scam Alert is still in the testing phase, with limited availability, awaiting a full performance evaluation of the system by Meta before being expanded to more users.