About MOUNT10 Blog M365 Backup

Why does Microsoft 365 need a backup?

Many companies assume that their data in Microsoft 365 is automatically fully protected.
That is not the case.

Although Microsoft provides the infrastructure, customers are responsible for protecting and restoring their own data.

What are the risks of not having a backup?

Accidental deletion

Employees delete emails or files
The Recycle Bin is emptied

The data is permanently lost

Ransomware attacks

Malware encrypts data
Synchronised data is also affected

other versions are also affected

Internal errors

incorrect permissions
Data is overwritten or tampered with

Limited recovery options

Microsoft offers only limited retention periods
no granular restore scenarios

What does Microsoft itself say?

Microsoft operates according to the Shared Responsibility Model

This means:

Microsoft = Platform & Availability
Customer = Data & Protection

What are the benefits of an external backup?

A professional backup enables:

Restoration of individual emails, files or entire mailboxes
Protection against ransomware through isolated storage
Long-term archiving
Rapid recovery in an emergency

Microsoft 365 is powerful – but it’s no substitute for a backup.
If you don’t back up your data separately, you risk losing all your business-critical information in the event of an emergency.

Our recommendation:
Check your backup strategy regularly and make sure that restores actually work.