Entra ID: Expansion of WhatsApp as an MFA one-time passcode delivery channel
Microsoft Entra is expanding its use of WhatsApp to deliver MFA one-time passcodes to users in India and other countries starting from December 2024. The delivery method was first enabled in India and Indonesia in late 2023 and was temporarily disabled in India in early 2024. Microsoft observed better results in deliverability, completion rates, and user satisfaction using this channel. Only users enabled to receive MFA text messages and with WhatsApp on their phone will receive OTPs via WhatsApp, with SMS as a fallback if users are unreachable or don't have internet connectivity. Users receiving OTPs via WhatsApp will be notified by SMS of the change in behavior. The sender agent in WhatsApp will be branded as Microsoft. Organizations can disable this feature and opt for more secure methods like Microsoft Authenticator.
If you are a Microsoft Entra workforce customer and currently leverage the text-message authentication method, it is recommended to notify your helpdesk about this upcoming change. Disabling text messages as an authentication method is also an option for organizations. Microsoft suggests using more modern and secure methods like Microsoft Authenticator and passkeys over telecom and messaging app methods.
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