Several month ago (uncertain number) hackers gained access to a Microsoft support portal which in turn allowed hackers access to unsuspecting victims email accounts. The support portal account was immediately disabled once Microsoft discovered the breach at the end of March. Here is the article: https://www.onmsft.com/news/outlook-com-was-hacked-and-its-worse-than-expected-as-hackers-also-had-access-to-some-email-content
