MFA & Verification Issues

How to Stop Microsoft Verification Codes Sent to the Wrong Phone

Kushani NimanthikaKushani Nimanthika Oct 26, 2026 868 views

Question details

The user is receiving unsolicited Microsoft account verification codes via text message on a phone number that is not linked to their account.

Stop Microsoft Account Verification Codes Sent to the Wrong Phone
Product
Microsoft Account
Device & OS
not provided
Scenario
Getting multiple unexpected SMS messages containing Microsoft verification codes, frequently arriving during the night.
Observed behavior
SMS verification codes are repeatedly delivered to the wrong phone, likely because another user accidentally entered the incorrect phone number when registering or signing in.
Before you start

Do not click any links in these unexpected text messages and never share the verification codes with anyone, even if someone contacts you claiming it was a mistake.

Solution 1Recommended

Ignore Codes and Contact Microsoft Support to Unlink Your Number

The safest approach is to ignore the texts and securely report the incidents to Microsoft so they can investigate and unlink your phone number from the unauthorized account.

These messages are typically the result of a simple typo. Another user likely has a phone number very similar to yours and entered it incorrectly while setting up Two-Factor Authentication (2FA) or attempting a password reset.

1
Do Not Use or Share the Code

Simply ignore the text message. Do not attempt to use the provided code to sign in to any account, and never forward or read the code to anyone else.

2
Document the Incidents

Write down the exact dates and times you received the unsolicited verification messages. Microsoft Support will need this information to trace the account.

3
Contact Microsoft Account Support

Navigate to the official Microsoft Account Support page in your web browser. Open a private support request or start a live chat session.

4
Request Investigation and Unlinking

Provide the support agent with the dates and times of the messages. Ask them to investigate the incorrect association of your phone number with another user's account and request that your number be unlinked.

Ignore Codes and Contact Microsoft Support to Unlink Your Number
Account Safety: As long as the phone number is not linked to your personal Microsoft account, your own account's security is not compromised by receiving these messages.
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Frequently Asked Questions

Could my Microsoft account be hacked if I keep getting these texts?

If the phone number isn't linked to your actual Microsoft account, your account is perfectly safe. The texts simply indicate that someone else is entering your phone number by mistake while trying to access their own account.

Should I reply to the text message with 'STOP'?

No, you should never reply to automated verification text messages. Replying usually will not stop them and might confirm to automated systems or potential scammers that your phone number is active.

Can I just block the phone number sending the verification codes?

You can block the sender's shortcode on your mobile device to stop seeing the notifications. However, be aware that if you ever need a legitimate Microsoft verification code for your own account in the future, it might also be blocked.