Hello,
To help resolve this issue, please follow the steps below:
- Verify Your Account Security:
• Sign in to your Microsoft account at account.microsoft.com.
• Review your recent sign‐in activity and the Security Info page to ensure no other unauthorized changes have been made.
• If you notice any activity you don’t recognize, please use the “I think someone else is using my Microsoft account” option available on support site.
- Remove or Update the Unauthorized Phone Number:
• Once signed in, navigate to the Security Info page.
• Locate the phone number that you believe is unauthorized.
• If you’re able to remove it, click “Remove” or “Delete” next to the phone number.
• If you’re unable to remove the number because it’s required for sign‐in or recovery, or if the option is grayed out, please proceed to step 3.
- Verify Your Identity and Contact Support Team:
• For your security, may need to verify your identity before making changes to your account details.
• Please contact Microsoft Support directly using secure support channels.
• When you contact , have your account information ready, and be prepared to answer some security questions so Microsoft can confirm your identity and help resolve the issue.
- Secure Your Account:
• We also recommend that you change your account password and update your two‐step verification settings.
• Review any additional security settings and ensure that your recovery email and security questions are current.
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