Are messages on Instagram private?

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Tags

1. #sending
2. #followers
3. #private
4. #direct
5. #instagram
6. #approve
7. #users
8. #their
9. #which
10. #follower
11. #everything
12. #anyone
13. #default
14. #follow
15. #would
16. #messages
17. #option
18. #public
19. #means