Instagram has been hacked and users say their emails have been changed to.ru domains. Hackers were able to get in and change users information such as. usernames, profiles photos, passwords, and linked Facebook accounts among other things. Instagram has given instructions to users on how to restore their affected accounts and revoke access to third-party apps. Blocking third parties protects not only Instagram users and Instagram itself, but also third party app providers, who, under a law like the GDPR, would be liable if miscreants get hold of users data through them.”]
Source: https://informationsecuritybuzz.com/articles/instagram-hack/