machine-learning model

Meta is rolling out Scam Alert, an optional beta feature for WhatsApp that uses an on-device machine-learning model to flag likely scam messages from users who are not in a contact's list. The alert examines incoming messages for patterns associated with fraud but only displays a warning banner rather than blocking communication. Users are also advised to enable two-step verification and regularly review their linked devices for account security.

New York's outdated Electronic Benefits Transfer (EBT) cards lack modern fraud protection, leaving users vulnerable to unauthorized charges with no reimbursement. California reduced benefits theft by 76% using chip-and-tap cards and machine-learning fraud detection, highlighting viable solutions absent in New York.

A machine-learning model uses smartphone cameras to measure heart rate during normal daily phone use and estimate resting heart rate, potentially improving heart health monitoring. The technology was published in Nature on June 1, 2026.