PhoneAccount Abuse Detector appPhoneAccount Abuse Detector is Security tool that is open source under the AGPL-3.0-only license.
PhoneAccount Abuse Detector is a simple application to enumerate and detect any application that (ab)uses adding an indefinite amount of PhoneAccount(s) to Android's TelecomManager.
What's the background of this? In short: malicious or even just improperly programmed applications can, intentionally or not, block your device from the ability to call emergency numbers. If you are in such a situation, this app helps you to find the culprit – which you then can uninstall (of disable).
For details on the vulnerability, check the article by Mishaal Rahman here.
NOTE: the app's source repo has been archived on 2023-04-28, so there will be no more updates.