Google is enhancing the security of incoming calls on Android devices by integrating a "Verified Caller" feature into Google Play Services. This feature aims to combat scam calls that use Do-Not-Originate (DNO) numbers by cross-referencing incoming calls against a database of DNO numbers to flag potential scams. The system will work with existing applications, such as banking apps, to monitor specific DNO numbers. The feature is still in development and its effectiveness will depend on business participation and strict verification processes by Google.