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Microsoft 365 is not a backup: the most dangerous assumption in SMEs
Backup · 22 May 2026 · Kevin Eggimann

Microsoft 365 is not a backup: the most dangerous assumption in SMEs

Microsoft ensures the availability of Microsoft 365, but not your data against deletion, ransomware or staff departures. Why you need your own backup.

Our data is in the cloud, so it is safe. That sentence is common in everyday SME life, and it is dangerous. Microsoft 365 is highly available, but it is not a backup.

What Microsoft actually guarantees

Microsoft ensures the service runs and the infrastructure is redundant. Deleted content stays in the recycle bin for a limited time, after that it is gone. It does not protect against accidental or malicious deletion of your own data, against ransomware, or against gaps in retention policies.

The shared responsibility principle

Microsoft is responsible for the platform and its availability. Protecting the data itself is your responsibility. That is written into the terms, but in daily practice it often gets overlooked.

Real-world scenarios

  • An employee leaves the company, their mailbox is deleted, and months later an important email is missing.
  • Ransomware encrypts files in OneDrive and SharePoint, and sync spreads the damage further.
  • A SharePoint site is deleted by accident and can no longer be recovered once the retention period expires.

What you need

An independent backup of Microsoft 365 with your own freely configurable retention, granular restore of individual items, immutable storage against ransomware, and a location in Switzerland.

The point

Availability is not a backup. Anyone who wants to truly protect their Microsoft 365 data needs a second, independent copy that is still there when something goes wrong in the original.

How we solve this for you.

With our Microsoft 365 backup on Veeam, we protect Exchange, OneDrive, SharePoint and Teams geo-redundantly in Swiss datacenters, with your own retention and granular restore.

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