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Your Microsoft 365 data is not being backed up

This is the most common gap we find: assuming that because it is in the cloud, it is backed up.

Even in well-run environments this is the gap we find most often. Mail, files and collaboration have moved to the cloud, and nobody asked whether any of it is backed up. Being in the cloud is taken to mean being safe.

What Microsoft protects

Microsoft guarantees continuity of the service. Their data centres are redundant, hardware failure does not affect you, and restoring the platform is their job.

But the data inside it is your responsibility. This is written plainly in Microsoft's own terms and is described as the shared responsibility model.

Put simply: they protect the server, you protect the file.

Retention policy is not backup

"Deleted items are kept for 30 days" or "there is a recycle bin" is how this conversation usually gets dismissed. Those are retention policies, not backups.

The difference shows up here:

  • When the period expires the data is permanently deleted
  • If an administrator account is compromised, policies can be changed
  • Ransomware can encrypt the cloud copy through the sync client
  • When a leaver's licence is removed, the mailbox disappears after a period
  • Returning to a specific date is usually not possible

Real scenarios

A leaver. The licence is removed and the mailbox is deleted after a period. Six months later a contract exchange is needed and cannot be found.

Ransomware. The sync client on a user's machine uploads the encrypted files to the cloud. The cloud copy goes too.

Accidental deletion. A team channel and all its files are deleted. It takes weeks for anyone to notice.

Malicious deletion. A departing employee clears out shared areas before leaving.

What should be covered

When choosing a backup product, make sure all of these are included:

  • Mailboxes, calendars and contacts
  • Cloud file storage, personal and shared
  • Collaboration spaces and chat history
  • Site and list data

Also: restore must work at individual item level. Restoring an entire mailbox rarely helps; what is wanted is one e-mail.

Cost comparison

Microsoft 365 backup costs a small amount per user per month. The annual figure is far below the cost of losing a single contract exchange.

We review your current setup free of charge and put in writing what is covered and what is not. The result is usually a surprise.

Need help with this?

Ask us about backup and business continuity, or request a free assessment directly.

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