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We鈥檙e Changing the Way You Sign In to Microsoft 365 Services!

Text message codes will soon no longer be supported as an authentication method when signing in to Outlook, Teams, SharePoint and other Microsoft 365 services.

Opublikowano: 29 October 2026
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If you currently confirm your sign-in using a text message code, please configure another authentication method in advance.

Why Are We Making This Change?

Text message authentication is less secure against modern account takeover methods than authentication applications. This change will increase the security of the university accounts and data.

What Should You Do?

Go to and review your authentication methods. If text message authentication appears among them, follow the step-by-step instructions we have prepared.

STEP-BY-STEP INSTRUCTIONS

You will also find a list of frequently asked questions (FAQ) at the link above.

Why Should You Change Your Authentication Method Before 1 December?

From that date, users who continue to rely on text message authentication will begin seeing prompts during sign-in asking them to register a new authentication method.

Although it will be possible to dismiss the prompt, the change can only be postponed a limited number of times. Once the postponement limit has been reached, configuration of a new authentication method will become mandatory. Until the process is completed, access to Microsoft 365 services will not be available.

That is why we encourage you not to leave the change until the last minute and to configure a new authentication method at your convenience over the coming weeks.

Published: Agnieszka Wo艣-Moder

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