Why would we expect any data privacy?
In recent versions of the navigation app, Waze, you are required to release access to your full mobile Contact List in order to communicate with other drivers or add someone to your Waze Friends List. You are, therefore, releasing valuable information to Google about every person in your contacts list without their permission.
Google acquired ways in 2013 and in the current Waze Terms & Conditions it give Google the right to use the Contacts List as it wishes. This seems like Google's most intrusive action yet and is a gross violation of personal privacy.
information for whatever purpose it wishes.

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