Microsoft is retiring Microsoft-provided text message (SMS) codes and phone call (voice) verification for sign-ins and multi-factor authentication (MFA). Starting in September 2026, users who rely on these methods will need to use a more secure sign-in option. Users will NOT be able to use these methods beginning on February 1, 2027.
What Is Changing?
Today, some users verify their identity by:
- Receiving a text message with a verification code (SMS)
- Receiving an automated phone call (voice verification)
Beginning February 1, 2027, these Microsoft-provided authentication methods will no longer be available. Instead, Microsoft will require users to use more secure alternatives, such as:
- Microsoft Authenticator
- Passkeys
- Windows Hello
- Other approved authentication methods
What It Means for You
- If you already use Microsoft Authenticator, Windows Hello, or a passkey, you do not need to make any changes.
- If you currently use text messages or phone calls for sign-in verification, you should plan to switch to a different method when prompted to do so starting in September 2026.
- Ensure you are using your secure verification method before February 1, 2027.
What You Need to Know
Microsoft is making this change because SMS and voice-based authentication methods are more vulnerable to:
- Phishing attacks
- SIM-swapping attacks
- Account takeover attempts
Transition Timeline
September 2026 | Microsoft will begin encouraging users to move away from SMS and voice verification methods. During this time:
|
September 2026 through January 2027 | This transition period is intended to give users time to review and update their authentication methods before the retirement date. We recommend updating your authentication methods during this period rather than waiting until the deadline. |
February 1, 2027 | Microsoft will retire Microsoft-provided SMS and voice verification. After this date:
|
Frequently Asked Questions
What is a passkey?
A passkey is a secure way to sign in without using text message codes or traditional passwords. Passkeys typically use a device's built-in security features, such as:
- Face recognition
- Fingerprint recognition
- Device PIN
Passkeys are designed to be both easier to use and more resistant to phishing attacks.
Will I lose access to my account?
Not if you update your authentication method before the retirement date. If you're unsure which authentication methods are currently configured on your account, we can help you review and update them.
How do I know which sign-in method I'm using?
Follow the instructions in this article: Check or Change Your Microsoft Authentication Methods.
When does this change take effect?
Microsoft will retire Microsoft-provided SMS and voice authentication on February 1, 2027.
Contact IT
Contact IT if:
- You are unsure which authentication method you use
- You need help setting up Microsoft Authenticator
- You need help enrolling a passkey
- You have questions about this upcoming change
We recommend reviewing your authentication methods before the February 1, 2027 deadline.
Learn More
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