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=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D We are notifying all Microsoft Entra ID tenants of an important change to a= uthentication security: The AI era demands stronger, phishing-resistant aut= hentication. Passkeys are becoming the default authentication experience in= Microsoft Entra, and Microsoft-provided SMS and voice authentication will = retire on February 1, 2027.=20 For more context on why Microsoft is moving to phishing-resistant authentic= ation by default, please read our Microsoft Security Blog announcement.=20 https://www.microsoft.com/security/blog/2026/07/13/microsoft-entra-id-secur= ity-updates-passkeys-are-the-default-authentication-method-in-entra-id/?mso= ckid=3D370e7edffc796e4409a36893fd9e6fbb ** What is changing ------------------- - Passkeys become the default authentication experience for users currently= enabled for SMS or voice. - Microsoft-provided telecom delivery for SMS and voice will be retired. Cu= stomer-managed telecom providers configured through the Microsoft Security = Store are not affected. ** Why this is changing ----------------------- SMS and voice are among the most vulnerable authentication methods availabl= e today and provide significantly weaker protection against phishing, SIM-s= wap, and replay attacks than passkeys. Moving to phishing-resistant methods= gives your organization stronger security by default. ** Impact on you and key dates ------------------------------ - September 1, 2026 =E2=80=94Users enabled for SMS or voice are automatical= ly enabled for passkeys and will be nudged to register a passkey when they = next complete MFA. (If you do not want this, move users out of SMS or voice= in the Authentication Methods Policy before this date.) - February 1, 2027 =E2=80=94Microsoft-provided SMS and voice are fully reti= red in Microsoft Entra ID. Customer-managed telecom providers are unaffecte= d. - After February 1, 2027 =E2=80=94 Users whose only available MFA method is= SMS or voice will receive a blocking prompt to register a passkey before t= hey can continue signing in. There is no opt out from this enforcement; it = applies to all tenants. If no users in your tenant are enabled for SMS or voice, no action is requi= red and you can disregard the steps below.=20 If you do have users enabled for SMS or voice, the required action is to mo= ve every one of those users off SMS and voice before February 1, 2027. Micr= osoft recommends passkeys =E2=80=94 the default phishing-resistant credenti= al in Microsoft Entra ID. Take the following steps: 1. Find affected users. Identify who in your tenant is still enabled for SM= S or voice. 2. Move users to passkeys. Enable passkeys and run a registration campaign = to drive adoption at scale before auto-enablement on September 1, 2026. 3. Communicate the change. Notify your users of what is changing, when, and= the action they need to take. 4. Evaluate a telecom provider only if required. If you have a regulatory o= r operational need to keep SMS or voice, configure a customer-managed provi= der through the Microsoft Security Store before February 1, 2027 (provider = options and pricing published beginning September 18, 2026; configuration a= vailable beginning October 30, 2026). The bottom line: every SMS and voice user must be on a phishing-resistant m= ethod =E2=80=94 passkeys are recommended =E2=80=94 before Microsoft-provide= d SMS and voice retire on February 1, 2027. Acting before September 1, 2026= lets you move users on your own schedule and avoid blocking prompts. Read migration guidance > >> https://aka.ms/passkeybydefault Privacy Statement https://go.microsoft.com/fwlink/?LinkId=3D521839 Microsoft Corporation, One Microsoft Way, Redmond, WA 98052 Microsoft footer logo= --=-uEv80Imk97LMutST1dv/vw== Content-Type: text/html; charset=utf-8 Content-Transfer-Encoding: quoted-printable =20 =20 =20 Passkeys by default and retirement of Microsoft-provided SMS and vo= ice authentication =20
Passkey= s are becoming the default. Microsoft-provided SMS and voice retire Februar= y 1, 2027.           = ;            &n= bsp;            = ;            &n= bsp;            = ;            &n= bsp;            = ;            &n= bsp;            = ;            &n= bsp;            = ;            &n= bsp;            = ;            &n= bsp;            = ;            &n= bsp;         
=20 =20 =20 =20
3D"Micr=

Move to phishing-resistant authentication bef= ore SMS and voice retire

We are notif= ying all Microsoft Entra ID tenants of an important change to authenticatio= n security: The AI era demands stronger, phishing-resistant authentication.= Passkeys are becoming the default authentication experience in Microsoft E= ntra, and Microsoft-provided SMS and voice authentication will retire on Fe= bruary 1, 2027.

For more context on why Microsoft is moving to phis= hing-resistant authentication by default, please read our = Microsoft Security Blog announcement.

What is changing

  • Passkeys beco= me the default authentication experience for users currently enabled for SM= S or voice.
  • Microsoft-pro= vided telecom delivery for SMS and voice will be retired. Customer-managed = telecom providers configured through the Microsoft Security Store are not a= ffected.

Why this is changing

SMS and voic= e are among the most vulnerable authentication methods available today and = provide significantly weaker protection against phishing, SIM-swap, and rep= lay attacks than passkeys. Moving to phishing-resistant methods gives your = organization stronger security by default.

Impact on you and key dates

  • September 1, 202= 6 =E2=80=94 Users enabled for SMS or voice are automatically enabled fo= r passkeys and will be nudged to register a passkey when they next complete= MFA. (If you do not want this, move users out of SMS or voice in the Authe= ntication Methods Policy before this date.)
  • February 1, 2027= =E2=80=94 Microsoft-provided SMS and voice are fully retired in Micros= oft Entra ID. Customer-managed telecom providers are unaffected.
  • After February 1= , 2027 =E2=80=94 Users whose only available MFA method is SMS or voice = will receive a blocking prompt to register a passkey before they can contin= ue signing in. There is no opt out from this enforcement; it applies to all= tenants.

If no users in = your tenant are enabled for SMS or voice, no action is required and you= can disregard the steps below.

If you do have users enabled for SMS o= r voice, the required action is to move every one of those users off SM= S and voice before February 1, 2027. Microsoft recommends passkeys =E2=80= =94 the default phishing-resistant credential in Microsoft Entra ID. Take t= he following steps:

  1. Find affected us= ers. Identify who in your tenant is still enabled for SMS or voice.
  2. Move users to pa= sskeys. Enable passkeys and run a registration campaign to drive adopti= on at scale before auto-enablement on September 1, 2026.
  3. Communicate the = change. Notify your users of what is changing, when, and the action the= y need to take.
  4. Evaluate a telec= om provider only if required. If you have a regulatory or operational n= eed to keep SMS or voice, configure a customer-managed provider through the= Microsoft Security Store before February 1, 2027 (provider options and pri= cing published beginning September 18, 2026; configuration available beginn= ing October 30, 2026).

The bottom line= : every SMS and voice user must be on a phishing-resistant method =E2= =80=94 passkeys are recommended =E2=80=94 before Microsoft-provided SMS and= voice retire on February 1, 2027. Acting before September 1, 2026 lets you= move users on your own schedule and avoid blocking prompts.

     Read migration guidance &g= t;     
=20

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