https://techcrunch.com/2018/09/28/facebook-hack-instagram-facebook-login/

Even if you never log into Facebook itself these days, the other apps and services you use might be impacted by Facebook’s latest big, bad news.

In a follow-up call on Friday’s revelation that Facebook has suffered a security breach affecting at least 50 million accounts, the company clarified that Instagram users were not out of the woods — nor were any other third-party services that utilized Facebook Login. Facebook Login is the tool that allows users to sign in with a Facebook account instead of traditional login credentials and many users choose it as a convenient way to sign into a variety of apps and services.