I don't understand either how it got to keep such a low profile. Not long before this came out, there was an "incident" where everyone could alter specific Bing

I don't understand either how it got to keep such a low profile. Not long before this came out, there was an "incident" where everyone could alter specific Bing search results (and probably other services too), and as a consequence gain access to all data the browser shares with bing, and that includes the access keys to all the MS accounts of the user that happens to use Bing for that specific search. Impact unknown, because they didn't divulge that. Why? Your guess is as good as mine.