Microsoft Entra: Windows Hello for Business and macOS Platform Single Sign-on can now be used as a second factor for MFA

Vendor: Microsoft
Product: Microsoft Entra
Type: Availability
Announcement date: 2026-08-11
Effective date: Date not published
Impact: Affected

In brief

What the source says

Windows Hello for Business (WHfB) and macOS Platform SSO (macOS PSSO) can now satisfy multifactor authentication as a standalone second factor. Previously, these methods only counted as MFA during primary sign-in, and users needed a separate passkey to complete step-up prompts, Authentication Strength policies, and sign-in frequency checks. With this change, WHfB and macOS PSSO work on their own for those scenarios, so more of your users can rely on strong, phishing-resistant sign-in without registering an extra method. What you need to know: Users who have only WHfB or macOS PSSO are now treated as MFA-capable and will no longer be automatically prompted to register another method. Because WHfB and macOS PSSO are tied to a specific device, we recommend having users register a portable method, such as a passkey or Microsoft Authenticator, during onboarding so they can complete MFA from any device. GA date: October CY2026 In development General Availability Worldwide (Standard Multi-Tenant) GCC Microsoft Entra Desktop Mac

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Who is affected: The audience described by the Microsoft update is represented by: Microsoft Entra: Windows Hello for Business and macOS Platform Single Sign-on can now be used as a second factor for MFA Windows Hello for Business (WHfB) and macOS Platform SSO (macOS PSSO) can now satisfy multifactor authentication as a standalone second factor. Previously, these methods only counted as MFA during primary sign-in, and users needed a separate passkey to complete step-up prompts, Authentication Strength policies, and sign-in frequency checks. With this change, WHfB and macOS PSS

Why it matters: The change matters because the official source describes: Microsoft Entra: Windows Hello for Business and macOS Platform Single Sign-on can now be used as a second factor for MFA Windows Hello for Business (WHfB) and macOS Platform SSO (macOS PSSO) can now satisfy multifactor authentication as a standalone second factor. Previously, these methods only counted as MFA during primary sign-in, and users needed a separate passkey to complete step-up prompts, Authentication Strength policies, and sign-in frequency checks. With this change, WHfB and macOS PSS

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2026-08-29T09:22:49.319599+00:00
Event
Microsoft Entra: Windows Hello for Business and macOS Platform Single Sign-on can now be used as a second factor for MFA Windows Hello for Business (WHfB) and macOS Platform SSO (macOS PSSO) can now satisfy multifactor authentication as a standalone second factor. Previously, these methods only counted as MFA during primary sign-in, and users needed a separate passkey to complete step-up prompts, Authentication Strength policies, and sign-in frequency checks. With this change, WHfB and macOS PSSO work on their own for those scenarios, so more of your users can rely on strong, phishing-resistant sign-in without registering an extra method. What you need to know: Users who have only WHfB or macOS PSSO are now treated as MFA-capable and will no longer be automatically prompted to register another method. Because WHfB and macOS PSSO are tied to a specific device, we recommend having users register a portable method, such as a passkey or Microsoft Authenticator, during onboarding so they can complete MFA from any device. GA date: October CY2026 In development General Availability Worldwide (Standard Multi-Tenant) GCC Microsoft Entra Desktop Mac
source
Product Microsoft Entra
Microsoft Entra: Windows Hello for Business and macOS Platform Single Sign-on can now be used as a second factor for MFA Windows Hello for Business (WHfB) and macOS Platform SSO (macOS PSSO) can now satisfy multifactor authentication as a standalone second factor. Previously, these methods only counted as MFA during primary sign-in, and users needed a separate passkey to complete step-up prompts, Authentication Strength policies, and sign-in frequency checks. With this change, WHfB and macOS PSSO work on their own for those scenarios, so more of your users can rely on strong, phishing-resistant sign-in without registering an extra method. What you need to know: Users who have only WHfB or macOS PSSO are now treated as MFA-capable and will no longer be automatically prompted to register another method. Because WHfB and macOS PSSO are tied to a specific device, we recommend having users register a portable method, such as a passkey or Microsoft Authenticator, during onboarding so they can complete MFA from any device. GA date: October CY2026 In development General Availability Worldwide (Standard Multi-Tenant) GCC Microsoft Entra Desktop Mac
source
Insight a salesperson
Microsoft Entra: Windows Hello for Business and macOS Platform Single Sign-on can now be used as a second factor for MFA Windows Hello for Business (WHfB) and macOS Platform SSO (macOS PSSO) can now satisfy multifactor authentication as a standalone second factor. Previously, these methods only counted as MFA during primary sign-in, and users needed a separate passkey to complete step-up prompts, Authentication Strength policies, and sign-in frequency checks. With this change, WHfB and macOS PSSO work on their own for those scenarios, so more of your users can rely on strong, phishing-resistant sign-in without registering an extra method. What you need to know: Users who have only WHfB or macOS PSSO are now treated as MFA-capable and will no longer be automatically prompted to register another method. Because WHfB and macOS PSSO are tied to a specific device, we recommend having users register a portable method, such as a passkey or Microsoft Authenticator, during onboarding so they can complete MFA from any device. GA date: October CY2026 In development General Availability Worldwide (Standard Multi-Tenant) GCC Microsoft Entra Desktop Mac
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