Microsoft account disconnection

When I opened up Minecraft, my Microsoft account (Dragontooth94) had been disconnected without me later thing out, and when I went to go log in, the password was apparently incorrect and I never changed my password or logged out. It's either a bug, or I got hacked. And I still can't log in. (The problem that I recorded with proof that it is me says it is too large to put on to this) I don't know if this is just me or a bug.