Making a new alias to stop unwanted authenticator login atempts

Question

Hi,

I've recently started getting unwanted authenticator login atempts, and i want that to stop .

If i make a new alias and then disable logging in through the old alias, would that fix the issue?

And will i still be able to receive mails targeted to the original alias?

Answer 1

Dear aaron Bonte,

Thank you for using Microsoft products and posting in the Microsoft Support Community.

I realise that you are trying to block unwanted authenticator login attempts by creating a new alias, I know deep down that this account is very important to you and I will do everything I can to help you!

If you create a new alias and then disable logins via the old alias, this can be very effective in stopping intruders who already know your account name. You are doing a very good job 👍!

To do this, click on this link ( https://account.microsoft.com/)and sign in to your Microsoft account, then click [Your Info] on the left and then [Edit account info] on the right side of the screen that opens. In this interface, you can add an alias for your account as a new login name.

You will then need to click [Make Primary] to the right of your new alias to make it the primary alias.

To add aliases if you still don't understand them, see Add or remove an email alias in Outlook.com - Microsoft Support

Important: After adding a new primary alias, please do not delete your original primary alias, especially not the email address of the Microsoft domain name, after deletion the account will be completely deleted, as well as all Microsoft products purchased through the account, this process is irreversible, once again, do not delete the original primary alias!

After that, click [Change sign-in preferences] at the bottom to remove the checkmark in front of your current account name. You have successfully removed the login permissions for your account name. You can test this by typing your account name into the login screen, where Microsoft will alert you that the username doesn't exist, which will prevent you from logging in, which is the same as someone trying to hack into your account. Please note that in this case, you will not be able to log in yourself with this account name. Please remember your changed account name.

In addition, we have tested that you can still send and receive emails with this account name, and that the sender can use your account name as the recipient of the email and that the email functionality is not affected.

Thank you for your patience and support😊.Please feel free to let me know how it is going by answering below.

Best regards

Vivian - MSFT | Microsoft Community Support Specialist

Answer 2

Dear aaron Bonte,

Since I haven't received any reply from you yet, I don't know how far along you are. Previously you were experiencing a lot of login attempts and you thought of creating a new alias and then disabling login via the old alias, which can solve the problem very well.

You can uncheck the original alias login privileges in [Login Preferences], and in our tests you are still able to receive emails from the original alias.

Feel free to get back to me, I'm more than willing to help and look forward to hearing from you. 😊

Have a nice day~

Vivian - MSFT | Microsoft Community Support Specialist