https://www.bleepingcomputer.com/news/security/ring-android-app-sent-sensitive-user-data-to-3rd-party-trackers/

Amazon's Ring doorbell app for Android is sending to third-party trackers information that can be used to identify customers, research from the Electronic Frontier Foundation (EFF) has found.

Four analytics and marketing companies receive customer data that includes names, IP addresses, mobile network carriers, unique identifiers, and info from sensors on the Android device.