Licensing & Security on Virtosoftware Guides & Docs

Data Storage & Security

Thu, 10 Oct 2024 09:41:42 +0000

At Virtosoftware, we understand that the security of your data is of utmost importance, which is why we use state-of-the-art security measures to keep your information safe. Our data storage and security framework fully corresponds with Microsoft’s data protection standards: check the Microsoft 365 App Certification for Virto Calendar.

Virto Calendar App Security Summary#

1. Hosting & Architecture#

Azure hosting: Our application engine runs exclusively in VirtoSoftware’s Microsoft Azure subscription with no components deployed on premises servers
Multi-tenant by default: The service is registered as a multi-tenant app in Microsoft Entra ID, following Microsoft’s guidance for least-privilege, conditional-access-aware SaaS solutions

2. Data Flow & Storage#

Delegated access only: The app calls Microsoft Graph solely with delegated tokens that inherit the signed-in user’s rights; we never use application-level permissions
Ephemeral in-memory processing: Calendar payloads are processed in encrypted RAM and discarded at session end; no customer content is written to any Virto-controlled persistence layer
Token lifecycle: Tokens live in transient server memory and expire per Microsoft Graph standards; no long-term cache is persisted, aligning with OWASP session-management guidance

3. Compliance & Certifications#

Microsoft 365 App Certification: Virto Calendar has passed Microsoft’s independent security & compliance review, evidenced in the Microsoft 365 Partner Center listing
Aligned to Microsoft Teams service-level security: Our solution inherits Microsoft 365 defense-in-depth controls and can operate under customer Conditional-Access policies

4. Optional “Private-Cloud” Deployment#

For organizations with strict security requirements, we offer a custom build that you host in your own Azure subscription. This model provides full administrative control and keeps all telemetry within your environment. Implementation follows Microsoft’s SPFx/Teams app deployment checklist and can be delivered as an SPPKG or ARM template.

Licensing: general information and FAQ

Thu, 10 Oct 2024 09:41:32 +0000

Virto Calendar App by Virto is licensed depending on the number of users with edit and read-only permissions.

For example, you plan to let ten users work with Virto Calendar App. Two of them will have edit rights, and eight of them will have read-only rights. You need to purchase ten licenses for all Virto Calendar App users, even though some will have read-only rights.

You can find details about your current subscription in the “Subscription” tab under the gear icon.

Terms of Use (End User License Agreement)

Thu, 10 Oct 2024 09:41:23 +0000

End User License Agreement (EULA) for Virto Calendar App#

Please review the following license agreement before installing or using the Virto Calendar App software product (formally known as Calendar Overlay Pro) and/or its related materials.

Definitions: This UAB VirtoSoftware End User Software License Agreement (“EULA”) is a legal agreement between you (either as an individual user, corporation, or single entity) and UAB VirtoSoftware for the Virto Calendar App product, which includes software and may include associated media, printed materials, and “online” or electronic documentation (“SOFTWARE PRODUCT” or “SOFTWARE”). By exercising your rights to install the SOFTWARE PRODUCT, you agree to be bound by the terms of this EULA, including the limitations and warranty disclaimers.

Privacy Policy

Thu, 10 Oct 2024 09:41:15 +0000

This privacy policy was updated on November 24, 2025

1. Introduction#

Virtosoftware UAB, a legal entity established in Lithuania, along with its group companies (collectively “VirtoSoftware”, “we”, “us”, and “ours”), is committed to protecting your privacy.

This Privacy Policy describes our practices concerning the information that we collect through https://www.virtosoftware.com and any other websites operated by us (the “Websites”), our social media pages, email communications, and through our software applications for Microsoft 365 (collectively, the “Services”).