If I remove an Xbox from my Microsoft account, will it log it off of that device?

someone is using my old Xbox and I never signed out of it now I have random charges on my account. Will this remove my Xbox account from this device?
Answers

G. Whilikers

- Changing your Xbox account password will kill other logged-in sessions. - You should also contact Microsoft about the charges made by the buyer, they may reverse them. - Removing the Xbox from your account is a good idea too, that frees it up for the buyer.