Managing personal Outlook.com account settings, security, and privacy
Hey there! Nice to meet you!
Just to confirm, did your mother have two-factor authentication (2FA) active on the account?
If yes, is she able to access the second factor of authentication? Is the recovery phone number still active?
Important: If she has an active 2FA, ACSR will inform her that the recovery request will be ignored. If she only receives a message that the recovery request is either successful or indicates insufficient information, this means that 2FA is disabled.
Also, may I know when was the last time she successfully signed in to her account?
Best regards,
Darhyl