In the middle of editing a PDF I got a popup prompting me to change my Adobe ID password with no explanation. As I was working against the clock on a time sensitive document, I simply closed out of the popup. Acrobat DC then closed, with no warning, and without saving my changes.

This is a terrible way to make software. Please do not force me to change my password ever, and for the love of god don't close unsaved documents without a user's consent.