Business Continuity · Singapore

Druva backup: how your Microsoft 365 data actually gets protected

Most businesses assume Microsoft backs up their Microsoft 365 data. It doesn't — not the way most people think. Here's what Druva actually adds, and why it matters.

Quick answer Microsoft's own retention tools aren't a substitute for a real backup — they have limits and time windows. Druva keeps a separate, independent copy of your Exchange, SharePoint and OneDrive data, so recovery doesn't depend on Microsoft's own safety net.

The myth: "Microsoft backs it up for us"

This is the single most common misunderstanding we see. Microsoft 365 includes retention policies, version history and a recycle bin — genuinely useful, but built for short-term recovery of accidental changes, not a full, long-term, independent backup. If a mailbox is deliberately deleted, corrupted by ransomware, or simply falls outside the retention window, that data can be gone for good without a separate backup in place.

Native Microsoft 365 protection vs a real backup

	Microsoft's built-in retention	Druva backup
Purpose	Short-term accidental recovery	Long-term, independent data protection
Storage location	Inside your own tenant	Separate, independent copy
Protects against ransomware hitting the tenant itself	Limited	✓
Protects against a deliberate/malicious deletion	Limited	✓

What's actually covered

Exchange Online — every mailbox, backed up independently
SharePoint Online — sites and document libraries
OneDrive — every user's files
Point-in-time recovery — restore to before something went wrong, not just the latest state

The question worth asking today: if a staff member's mailbox was permanently deleted right now — by mistake or maliciously — could you get it back? If you're not sure, that's the gap.

Why this works better as a managed service

Backup software that's installed but never checked is a false sense of security — the same risk as backups that are never tested. As part of a managed setup, Cloudeli monitors that backups are actually completing, not just assumed to be running, and knows the real recovery process before it's ever needed under pressure. For the bigger picture on why "we have backups" alone isn't a full plan, see why backups and disaster recovery aren't the same thing.

FAQ

Questions, answered

Doesn't Microsoft already back up our data?

Microsoft protects the infrastructure and offers retention/recycle-bin features, but under the shared responsibility model, protecting your actual data long-term is your responsibility — not an automatic, unlimited backup.

What exactly does Druva back up?

For Microsoft 365, that typically covers Exchange Online mailboxes, SharePoint Online sites, and OneDrive accounts — kept as an independent copy, separate from your live Microsoft 365 tenant.

How fast can data actually be restored?

Recovery speed depends on what's being restored and how much data is involved — a managed setup includes knowing your actual recovery time in advance, not finding out during an emergency.