Similar thing happened to me. Worked on a project for a big bank. My work email was given access to their Active Directory or whatever for certain sharepoint f

Similar thing happened to me. Worked on a project for a big bank. My work email was given access to their Active Directory or whatever for certain sharepoint folder access. My work machine is signed into my /personal/ microsoft account for login, and then also signed into my work-personal account (i.e. MS account with my work email, but a self created personal one - we're not an MS company). At some point I was kicked off my Xbox, had to do a password reset dance to get access again, all because Big Bank's password expiry policy somehow leaked into my personal MS account thanks to being signed into both accounts on the same pc. And now, my company got an Active Directory for us, purely to make interfacing with other MS-powered clients easier. Imagine the nightmare of my work account, originally created by myself, and the conflicts with my new "work or school" AD account. It's such a mess.