Hacker News story: Ask HN: What if gmail was compromised?

Ask HN: What if gmail was compromised?
I vaguely remember years ago reading a hypothetical post about what would happen if gmail was shipped with a vulnerability that disabled password check. And essentially it would lead to the world ending. The author's claim was that it might not be so farfetched because there was a time when dropbox shipped a version with the password check disabled. I was hoping someone would remember it and or link it. Or failing that, what are people's thoughts on what would happen if such a vulnerability was shipped today. 0 comments on Hacker News.
I vaguely remember years ago reading a hypothetical post about what would happen if gmail was shipped with a vulnerability that disabled password check. And essentially it would lead to the world ending. The author's claim was that it might not be so farfetched because there was a time when dropbox shipped a version with the password check disabled. I was hoping someone would remember it and or link it. Or failing that, what are people's thoughts on what would happen if such a vulnerability was shipped today.