When you install the Instagram app, it wants access to your Phone and SMS functions on your phone. Today we know that Facebook’s Messenger app harvested ALL of your call and text records and stored them in the Facebook spy database.
Instagram is a product of Facebook and absolutely cannot be trusted regarding personal privacy. Facebook’s policy is to collect all information, everywhere.
Therefore do not permit Instagram access to features it does not need. And remember NEVER EVER upload your Contacts list to an app or a web site. Access to Contacts is not really for your benefit – it is for the app or service provider to harvest all the names, addresses, email addresses and phone numbers in your address book.
Therefore, when you install Instagram, set all permissions as follows.