Android 6 and later have improved the way apps are given access to certain data or features, such as contacts or the microphone.
When you open apps the first time, you'll be prompted to grant permissions, so you have more control over which apps have authorized access. This helps protect your phone and privacy.
When you choose
Deny, you may not be able to use the app or access its full functionality.
If you suspect a certain app of being malicious or requesting unnecessary permissions, you should choose
Deny to protect your phone.
If you can't open an app or experience problems with some of its functions, you may have denied some app permissions.