Android phones could soon warn you of "Stingrays" snooping on your communicatio

>Android phones need to have version 3.0 of Google's IRadio hardware abstraction layer

Am I looking at the wrong place in AOSP? To me it looks like it only needs 2.2.

https://cs.android.com/android/platform/superproject/main/+/...;

Basic defense against Stingray type devices is to disable 2G in your settings. In theory, you may not have coverage when only 2G is available. In practice, it is 2025.