fake call detection

Phone by Google is introducing a fake call detection feature to protect Android users from impersonation scams that use AI-powered deepfake technology. This feature requires both parties to use Android devices with the Phone by Google app, Google Messages, and Google Contacts. It works by sending a silent confirmation signal to verify the legitimacy of a call. If an impersonation attempt is detected, the user's phone will check with the actual contact's device, and if the real device indicates that it is not making a call, a warning will appear on the user's screen. The feature will roll out globally for Android 12+ devices, starting with Pixel phones, and will be enabled by default. The underlying RCS technology may also be adopted by other apps and manufacturers.