Google will be able to block third-party apps from using the Google Calendar Provider API Obviously, giving third-party companies the ability to view your Calendar events can pose a security risk.

When you give an app calendar permissions it can tap into Android’s Calendar Provider API to access schedule data that’s synced with your device. That could come from anything like Samsung ...

This new feature, found in Google Calendar's settings, aims to allow users to prevent third-party apps from viewing their Google Calendar events, even if those apps have general calendar access.