Microsoft 365 Backup: Do You Need It?

Published 16 June 2026 · Microsoft 365 · by the 365 Techies team — Microsoft Partners & Dell specialists, looking after Dorset since 1995

It is a common and risky misconception that data in Microsoft 365 is automatically backed up. Microsoft runs the platform; recovering your lost data is down to you.

The gaps to know about

Deleted emails and files are only kept for a limited time. After that, accidental deletion, a departing employee, or ransomware can mean permanent loss — and Microsoft's standard retention will not save you.

The fix

A dedicated Microsoft 365 backup keeps independent, recoverable copies of your email, OneDrive, SharePoint and Teams data, so you can restore exactly what you need, whenever you need it.

Key points

• Microsoft does not back up your data for you
• Standard retention is limited and time-bound
• Protects against deletion, leavers and ransomware
• Restore email, OneDrive, SharePoint and Teams