With notices being sent out to app developers around the globe, it looks like Google is about to cull a whole heap of apps that don’t meet the terms of its User Data Policy.
In particular, the message has been sent to developers whose apps request “sensitive permissions (e.g. camera, microphone, account, contacts, or phone)” but don’t have a valid privacy policy. The notice asks that a link to such a policy be provided in the Store Listing page as well as in the app itself, or alternatively, that the app-maker remove these sensitive permissions from the app altogether.