Google announced a new system for Android that it hopes will urge developers to seek fewer excessive permissions for mobile applications. The new system will enable users to download apps with zero permissions granted, and then during the course of normal usage, users will be prompted by the app if they want to extend any number of permissions. Excessive mobile app permissions have long been a security and privacy concern, in particular for Android users who download apps for the platform from a number of sources. Google has been slowly moving in this direction since introduction of Android 5.0, or Lollipop, in April.
Source: https://threatpost.com/google-locks-down-excessive-android-app-permissions/113051/