6m+ Instagram accounts exposed in hack (arstechnica.com)

Didn't realize it wasn't included in this article, so here are sources for the 6m+ number:

https://www.theverge.com/2017/9/1/16244304/instagram-hack-ap...

http://www.dailymail.co.uk/sciencetech/article-4844804/Data-...

https://twitter.com/selenalarson/status/903734446527881216