how do i find out whos using my account when ive changed my password

Normally in a password change it requires all other devices to sign in with the new password as soon as each device tries to access "sensitive information". Just recently changed all of mine for me and my sons account and had to type my password in even
though on my xbox profile doesn't require it on my console. So with a password change it should fix any issues with someone else logging into your account. As stated by XBF Brad A, I would definitely about security info. There are several options to make you
account more secure.

Hello Skippy,

Thanks for coming to the forums. We understand have question about log ins. You can go to the
account website then devices and check recent activity to see what devices have been signed in recently. If you changed your password, there is a section where it says make all others
sign in after reset password. They shouldn't be able to log in, if you changed the password though. You can try updating security information also.

Thanks,

Brad

If you are worried about your account I would recomended turning on 2 step verification and any new device signing it would be asked for additional verification.

try to see the linked devices

https://account.microsoft.com/devices/

This is the stupidest system ive ever seen. I have to log in to take a ****. I change my password, then to reply to this i had to change my password again. Cannot do a damn thing without logging in but it never gets in. Keep going in circles and getting
nowhere. Cannot call Xbox because when i select to gwt a call back in asks ne to enter Microsoft password again. Then asks how i want my code, then wants to reset my password. Its so stupid. Ive had this system for my daughter over a year ago and we still
have not used it once.