Microsoft Account Hacked - Can't Access Xbox

listen i have access to the hacked Microsoft account but i can't change the email because i need a code that i don't have access to

Have you been game sharing the could be the cause

You need to get back into contact with xbox support and let them know your account has been compromised.

If you follow the following link

https://beta.support.xbox.com/help/account-profile/manage-account/compromised-account-solution

and under step one you click cant sign into account

at the bottom of that section it will give you the following directions.

These are copied and pasted directly from that site.

If you do not receive an email or need to provide more information

If you receive an email notifying you that you did not provide enough information to verify your identity, or if you don’t receive an email at all within 24 hours, you will need to contact Xbox Support.

We'll need you to provide some specific information:

• The hardware identification numbers from the Xbox console you use most often.
  • For the Xbox 360, we’ll need the
    Console ID and the Console Serial Number.
  • For the Xbox One, we’ll need the
    Device ID and the Console Serial Number.
• The Microsoft account email address that you're trying to recover.
• An alternate phone number where we can reach you if necessary.
• A new Microsoft account without any gamertag associations. This new account will be used for secure communication purposes during the process of recovering your compromised account.
  

To create a new Microsoft account, go to
account.microsoft.com and select Create one! (you will need to sign out of any existing account to see the
Create option).

• When setting up this new account, please only use your
  phone number as a recovery option. Do not use an
  alternative email address as your other email accounts may also be compromised.
• Do not use this new Microsoft account on your Xbox console or on Xbox.com until you receive further notification from Xbox Support.

Once you give them this information they will send it up to the escalations team who will look at this info and determine if your account was truly compromised they will then transfer ALL of your information including purchases over to the new account that
it has you make.

The BIGGEST thing to remember is to NOT sign into the new account at account.xbox.com or on any console because this will create a new xbox profile for that email and they will not be able to transfer your old information to the new profile.

Have you ever shared your login and password with anyone? If so, this is always likely to happen.

should have had 2f on. if someone did steal your account, go here: https://support.microsoft.com/en-us/help/10494/microsoft-account-recover-hacked-compromised-account