Why Microsoft Is Moving Toward Passkeys and Away From SMS Authentication

Microsoft passkeys are becoming the default sign-in for Microsoft Entra ID, the identity service behind Microsoft 365 business accounts, and the texted verification codes many businesses rely on are being phased out. It is worth understanding before the prompts start showing up. A passkey is designed to be harder to phish than a code sent by text.

This is a real, scheduled change. On July 13, 2026, Microsoft announced that passkeys are becoming the default authentication method in Microsoft Entra ID, the identity service behind Microsoft 365 business sign-ins. As the rollout reaches organizations from September 1, 2026, users set up for SMS or voice codes are automatically enabled for passkeys. At their next sign-in, they are nudged to register one, and that nudge can be postponed during the transition. And from February 1, 2027, Microsoft will retire its own delivery of SMS and voice codes. Businesses with a genuine need will be able to configure a separate telecom provider. Microsoft is opening that option from October 30, 2026, rather than right away.

What the Passkey Change Means for You

• Microsoft passkeys are becoming the default sign-in for Microsoft Entra ID business accounts, rolling out to organizations starting September 1, 2026.
• Texted and phone-call verification codes are being phased out as a Microsoft-provided method.
• Passkeys are designed to resist phishing, because there is no code to read aloud or type into a fake page.
• Your team may start seeing prompts to register a passkey, so a little preparation avoids confusion.
• If your business has a real reason to keep SMS or voice, there is a path, but it needs a deliberate setup.

What Is a Passkey, in Plain Terms?

A passkey is a sign-in credential that lives on a device you already use, such as a phone, a laptop, or a small security key. You unlock it the same way you unlock the device, with a fingerprint, a face scan, or a PIN. There is nothing to type from a text message and nothing to read to a caller. Passkeys use public-key cryptography, so the private credential is not sent to a website during sign-in, and there is no code for an attacker to phish. Device-bound passkeys stay on one device. Synced passkeys can be encrypted and synchronized through an approved provider such as iCloud Keychain or Google Password Manager.

Why Microsoft Passkeys Are Replacing Texted Codes

Texted codes were a real improvement over a password alone, but a code can be phished. A fake login page can ask for it, or a caller pretending to be support can talk someone into reading it out. Once the attacker has the code, the second step is gone. Microsoft passkeys remove the code from the process entirely, which is the reasoning behind the shift. It is the same idea behind our look at Microsoft 365 account security beyond MFA. The goal is not just a second step, but one that is hard to trick a person into giving away.

What the Change Looks Like on Your Timeline

Two dates are worth knowing. These dates apply to Microsoft Entra ID in the public cloud. Microsoft says other cloud environments will follow a separate timeline.

• September 1, 2026: The rollout begins. Accounts set up for SMS or voice are automatically enabled for passkeys and nudged to register one, and that nudge can be postponed.
• February 1, 2027: Microsoft retires its own delivery of SMS and voice codes. This is the firm change, and after it affected tenants no longer opt out of the new behavior.

Being nudged to register a passkey does not remove your existing method overnight. It is a prompt, not a lockout. Microsoft also offers a temporary opt-out during the September 1, 2026 to February 1, 2027 transition, so an organization that needs more time has room before the change becomes firm. The useful response is to plan the move rather than dismiss the prompt each time.

How to Prepare Before the Prompts Start

The right steps depend on how your business is set up. Treat these as a starting list to review with whoever manages your Microsoft 365 environment.

• Confirm who administers your Microsoft 365 or Entra accounts, and make sure that person is aware of the change and the dates.
• Consider having staff register Microsoft passkeys on trusted devices, while keeping a backup sign-in method during the transition.
• Plan for people who share a device or do not use a smartphone, since a security key can serve as their passkey.
• If a regulation, contract, or workflow requires SMS or voice, note the February 1, 2027 date and the separate-provider path well before then.

If You Cannot Say How Your Team Signs In Today

Maybe you cannot say today whether your team signs in with texted codes, an authenticator app, or something else. That uncertainty is the first thing to resolve, and it is a configuration question, not a crisis. Knowing how your people currently sign in tells you how much this change touches your business, and how much preparation it deserves.

Frequently Asked Questions

Do we have to switch to passkeys right now?

Not in a single day. Beginning September 1, 2026, Microsoft starts rolling out passkeys as the default authentication experience for affected Entra ID users. Existing methods are not switched off at that moment. The change to watch is February 1, 2027, when Microsoft stops delivering SMS and voice codes itself. The sensible approach is to plan the move rather than wait for a prompt to force it.

What happens to our text-message codes?

Microsoft plans to stop providing SMS and voice code delivery on February 1, 2027. After that, a business that still needs those methods would configure a separate telecom provider to keep them. For most, registering a passkey or using an authenticator app is the simpler path.

Are passkeys safe if we lose the device?

A passkey is protected by your device or credential provider, and you unlock it with a fingerprint, face, or PIN. Because of that, a lost phone on its own is usually not enough for someone to get in, though how well that holds depends on the device’s own protection and how recovery is set up. The practical step is to register a passkey on more than one device, or keep a backup method, so losing one device does not lock you out.

Does this affect our personal Microsoft accounts too?

This change concerns Microsoft Entra ID business accounts. Personal Microsoft accounts have their own, separate passkey support and rollout. If your team uses both, treat them separately and confirm the specifics for each.

Want Help Planning the Move to Passkeys?

A short, planned rollout of Microsoft passkeys is far calmer than reacting to sign-in prompts one at a time. Businesses in Venice, Sarasota, and North Port can ask NUPC Technology whether its managed IT services or cybersecurity services fit their situation. Request an IT consultation or call (941) 888-4474.