Privacy on Instagram is Very important So im Going to Explain to you about Privacy
By default, anyone can view your profile on Instagram. If you would like to make sure only approved followers can see your profile:
Go to your profile by tapping the far right address card icon
Tap the settings icon in the upper right corner
Apple iOS -- Scroll to "Photos are private" and toggle the switch to ON to turn on privacy. Android -- Tap on "Photo privacy" then tap the box to turn on privacy.
Once you turn on Privacy, anyone who wants to see your photos, or followers & following lists, will have to send you a follow request that will appear in your News > You feed, which you can then approve or ignore. To approve or deny a follow request, just tap on the username that appears in the request. You'll then be brought to their profile page and at the top of this page you will see an "approve" and "ignore" button.
Photo Map
When a private user has a location associated with a photo, the photo will also appear on their Photo Map.
Only the private user will be able to see that photo on the geolocation tag page. Private users' images, even when geotagged, are hidden from their approved followers and from the public.
Only the private user and their approved followers will be able to see that photo on a Photo Map. Private users' images, even when geotagged, are hidden from the public.
Private users can add hashtags to photos, but only the private user and their approved followers will be able to see that photo on the hashtag page. Private users' images, even when hashtagged, are hidden from the public.
Likes
If a private user uploads a photo then an approved follower likes that image, the private photo will notappear in the News > Following feed.
If a private user likes a photo that a public user uploaded, their like will be visible and their username will be click-able below that public user's photo
Comments
If a private user @ mentions a user who is not an approved follower on one of their private photos, the user will be able to see part of the comment in the News > You feed, may receive a push notification (if their notification settings are turned on), but will not be able to navigate through to the private photograph.
If a private user leaves a comment on a photo that a public user uploaded, their comment will be visible and their username will be click-able below that photo.
Sharing Photos
If a private user shares a photo to a social network (such as Twitter, Facebook, Foursquare, etc.) using Instagram the image will be visible on that network and the permalink will be active, in other words, the photo will be publicly accessible by anyone who has access to the image's direct link/URL.
It's important to note that sharing a photo to a social network does not mean that the image will be visible in Instagram. The account will still appear private to those who are not approved followers, as seen in the screenshot below.
