Google Rolls Out Android Fake Call Detection for AI Voice-Cloning Scams

Google is launching fake call detection on Android to help stop scam calls that use caller ID spoofing and AI voice cloning to impersonate trusted contacts. The feature is rolling out globally this month for devices running Android 12 and later, starting with Pixel phones, and works through Phone by Google with supported RCS services. It is designed to warn users when a caller claims to be someone in their contacts but the call cannot be verified as coming from that person’s device.

The protection uses a silent background verification process in which the caller’s phone sends an encrypted confirmation signal during the call. If that signal is missing, the recipient’s device checks whether the real contact’s phone is actually placing the call and displays an impersonation warning if not. Google said the feature is enabled by default where supported, though users can turn it off in settings, and framed the rollout as a response to growing impersonation fraud that has expanded from consumer scams into business-focused social engineering and caused billions in reported losses.