Upcoming Requirement: Multi-Factor Authentication (MFA) for VertiGIS Microsoft 365 Tenant (effective end Q1 2026)

Dear VertiGIS Customers and Partners,

To further strengthen the security of our collaboration platforms, we will introduce mandatory Multi-Factor Authentication (MFA) for all external users accessing the VertiGIS Microsoft 365 Tenant (for example as a guest for a VertiGIS Team or Sharepoint) effective from 24 March 2026, 16:00 CET. This change is part of our ongoing commitment to safeguarding shared data and ensuring secure communication with our partners.
 

Impacted Apps and services

• Microsoft Teams, Excel, Word
• Microsoft SharePoint
• Viva Engage
• Any other apps registered in the vertigis.com Microsoft 365 tenant
   

What this means for you
Before end of Q1 2026, all external users will need to set up an authenticator app on their smartphone to verify their identity when signing in. It will not be possible to use Phone calls or SMS-based two-factor authentication. We recommend using Microsoft Authenticator and have added setup instructions below.
 

Recommended next steps

• Install an authenticator app on your mobile device.
• Follow the instructions below to ensure it is ready for use ahead of the activation transition date.
   

Setup instructions

1. Install the Microsoft Authenticator app on your mobile device, from the iOS App Store / Google Play Store.
2. Please sign in to your VertiGIS guest account by going to https://myapplications.microsoft.com/?tenantid=ed9114d4-e206-42bb-8637-1112932f3d50
3. Expand the section “My Account” and click on “Security info”:
   
4. Click on “Add sign-in method” and follow the steps.
   
5. Choose Microsoft Authenticator. Microsoft will guide you from here. Follow the next steps to add your authenticator app to your account.
   
   
   You can also refer to Microsoft’s documentation on how to add an authenticator app: How to add your accounts to Microsoft Authenticator - Microsoft Support

We appreciate your cooperation and understanding as we implement these enhanced security measures. Should you have any questions, please feel free to contact us.
 

Please forward this information to relevant colleagues in your organization.

Thank you for your continued partnership.