Cirrus Product FAQs

Most common general questions

How does it work?

In simple terms, the Cirrus application connects to your Microsoft 365 account and takes frequent backups of your data, storing them securely in a Microsoft Azure storage account.

Click below for a demonstration video of Cirrus in action.

How does sign up work?

Click below for a demonstration video of the simple sign up process.

What can I backup?

Cirrus can backup all of your data stored in your Microsoft 365 account, including SharePoint sites, Teams channels, mailboxes and OneDrive, as well as group mailboxes and sites.

Does the solution backup Teams and SharePoint shared data?


Once signed up, how to access Cirrus?

Cirrus can always be accessed from it’s web page, but you can access it from app launcher in Microsoft 365 once the sign up process is done. Browse to and login to access the App launcher.

How many files can I restore per month?

The Cirrus standard monthly charge covers 10 restorations of up to 20gb each per month with unlimited data per user.

What permissions need to be applied to my M365 tenancy?

To ensure all of your data is backed up, you will need to provide an account with the Global Admin role assigned.

Can the application be branded for our company?

The Enterprise version of Cirrus supports branding to suit your company, also known as “white-labelling”. Please contact our sales team for more information.

What happens to the users backup data when they are removed or disabled in M365?

Disabled User data is backed up in point of time backups, all data is stored for 7 years by default although other retention periods are available.

What level of M365 admin rights do you need for the backups?

The Cirrus service account requires Global Administrator permissions in order to be able to backup all objects.

Can you use Cirrus for Personal Microsoft Accounts?

No, Cirrus can only be used for Work / School accounts not personal accounts. To understand the difference, please read the following FAQ which explains the difference in detail.

What is the difference between a Microsoft Personal and Work/School account?

When you sign into Microsoft 365 you must always choose if you are using a personal account or a work or school account. Personal accounts are designed for individual users and can group together individual Microsoft personal accounts by family, but personal accounts use a very different authentication method that at this time cannot be backed up by the Veeam software that powers the Cirrus Backup Solution.

Please read the following article from Microsoft that goes into more details about the different between these types of Microsoft 365 Accounts:

Where can I submit ideas or feature requests for Cirrus?

Please visit to submit ideas and feature requests, all submissions will be considered by our product team.

Security and certifications questions

Is it secure?

We’ve invested in technical, physical and administrative safeguards to do our part to help keep your data safe and secure. While we’ve taken steps to help protect your data, no method of electronic storage is completely secure and we cannot guarantee absolute security. We will notify you if there appears to be unauthorised access to your account and we may also restrict access to certain parts of our services until you verify that access was by an authorised user. Examples of security safeguards we have in place are:

  • Front end Web application has been externally verified by 3rd party penetration testing.
  • Cirrus Support only has access to backup logs via the web application with no ability to browse backup content.
  • Cirrus Support is based on RBAC (Role Based Access Controls).
  • Multi Factor Authentication is used for all support access.
  • All Support actions are logged.
  • Admin access to Veeam Server is highly restricted; Support teams are provided admin credentials only for priority one events.
  • Cirrus is underpinned by a Veeam Certified Solution, Veeam Backup for Microsoft Office 365.
  • All granting of admin access is logged.
  • Granting of admin access does not allow Cirrus support to view customer data.
  • Cirrus users can only restore to their own Microsoft 365 instance or optionally download to their PC (downloads can be turned off using Role Based Access Control settings).
  • All company backup data is held in a dedicated Azure Cold Storage Account, storage accounts are never shared.
  • Veeam’s advanced 256-bit TLS encryption is used for all inflight and at rest data.
  • Protection is provided against ransomware as deleted files are automatically moved to an air-gapped location that is not visible or accessible to the customer or available to public routing. This service is exclusive to select Veeam Cloud Service Providers running Veeam Cloud Connect.
  • PCI Compliance.
  • All credit card transaction are processed by Stripe LLC, all credit card data is encrypted and monthly charges are made by Cirrus based on the provision of a secure token from Stripe LLC.

Is my data encrypted?

All data will be encrypted while in transit between your site and the backup store, and while at rest in the backup store.

Can Cirrus Support access my data?

Cirrus Support only has access to backup logs via the web application which they can access for the purposes of providing issue resolution. They have no ability to browse any files stored by the service.

Is the backup solution MFA compatible?

Yes, the backup solution is MFA compatible.

Does Cirrus offer immutable backup?

Yes, Cirrus does offer immutable backup.

What certifications does Cirrus adhere to?

As a SaaS provider, the CT4 groups of companies holds a number of certifications for controlling and managing our applications. The Cirrus M365 Cloud Backup application is deployed in Microsoft Azure which holds certifications to numerous security standards, including ISO27001:2013 and SOC . For more details on certifications held, please visit the Microsoft Azure Compliance page, or please contact our support or sales team.

What security standards do you employ?

To ensure that your data stays protected, Cirrus leverages Veeam’s advanced 256-bit TLS encryption is used for all inflight and at rest data.

Data Residency & Support questions

Where is support located?

Our support staff are located in the United Kingdom and Australia.

Where is the data stored?

Backups are stored in Azure storage accounts in the same region as your customer account.

* NZ: Cirrus utilises Azure Storage, Microsoft currently only has Data Centres in Australia, but they are building a NZ Data centre, we will utilise this as soon as it becomes available for NZ customers.

Data Residency & Support questions

What happens to my data if I cancel my subscription?

After a subscription is cancelled or terminated, backups will be held for up to 30 days. In order to access this data, you must contact Cirrus support to request provision of local backup copies. Cirrus Support will advise you of any charges payable to provide copies of stored data after subscription cancellation.

How is my credit card information secured?

All credit card transaction are processed by Stripe LLC. All credit card data is encrypted and service charges are made by Cirrus based on the provision of a secure token from Stripe LLC.

Does the price include storage?

The price includes unlimited storage.

Does Cirrus offer discounts for annual subscriptions?

Yes. Please contact our sales team to arrange annual payment methods.