How Often Should You Test Your Business Backups?

A café owner in Melbourne had been running automated cloud backups of her point-of-sale system for two years. She was confident. She was covered. Then her system crashed and she tried to restore — only to discover the backups had been quietly failing for the past eight months. A configuration change had broken the backup job, the error notifications had been going to a defunct email address, and nobody had noticed.

This story is not unusual. It is, in fact, surprisingly common. The assumption that a backup is working just because it was set up correctly is one of the most dangerous assumptions in small business cyber security.

A backup you have never tested is a backup you cannot trust.

Why Backup Testing Is Non-Negotiable

There are several ways a backup can fail silently — without any obvious error message or alert:

• Configuration errors — a change to your system inadvertently breaks the backup job
• Credential expiry — backup software uses credentials that expire or are changed, causing jobs to fail
• Storage limits reached — the backup destination runs out of space and new backups cannot be written
• File corruption — backup files become corrupted and cannot be used to restore
• Software incompatibility — a software update changes file formats or locations that the backup software does not handle correctly
• Backup running but restores failing — the backup completes successfully but the restore process is broken

None of these problems are visible without actually attempting a restore. Monitoring that a backup job completed is not the same as knowing you can recover from it.

How Often Should You Test Your Backups?

The right testing frequency depends on how critical your data is and how frequently it changes — but as a practical guide for Australian small businesses:

• Monthly: Verify that backup jobs are completing successfully and check the backup logs for any warnings or errors. This should take no more than a few minutes.
• Quarterly: Perform an actual test restore of a sample of files from your most recent backup. Confirm the files open correctly and the data is intact.
• Annually: Perform a full recovery test — attempt to restore your entire system or a critical system from backup. This simulates a real disaster recovery scenario and reveals issues that partial restores might miss. This is also a good time to review your Disaster Recovery Plan.

For businesses in high-transaction environments — retail, hospitality, professional services with daily client records — more frequent testing is warranted. For systems that hold critical customer data, regulatory data, or financial records, monthly restore tests are a reasonable investment.

What Does a Backup Test Actually Look Like?

Monthly check (15 minutes)

1. Log in to your backup software or cloud backup console
2. Review the backup job history — look for any failed or incomplete jobs in the past 30 days
3. Confirm the most recent backup completed successfully and check the backup size (a sudden change in size can indicate a problem)
4. Verify the backup destination has sufficient storage remaining
5. Check that alert notifications are going to a current, monitored email address

Quarterly restore test (1–2 hours)

1. Select a sample of files from different areas of your business — a few financial documents, a client record, an operational file
2. Use your backup software's restore function to restore these files to a test location (not over the originals)
3. Open each file and verify the content is intact and readable
4. If you use cloud services like Microsoft 365, test restoring a document from SharePoint and an email from Exchange using your backup tool
5. Document the date, what you tested, and the outcome

Annual full recovery test

This requires more planning but is the most realistic test of your recovery capability. The approach varies depending on your infrastructure:

• For cloud-based businesses: test restoring your entire Microsoft 365 or Google Workspace environment to a test tenant
• For businesses with servers: restore a virtual machine from backup to a test environment
• For businesses with multiple systems: document the recovery order (which systems need to be restored first) and time how long the process takes

If a full recovery test is beyond your in-house capability, ask your IT provider or Managed Service Provider (MSP) to conduct it on your behalf. It is worth including this in your service agreement.

Tools That Help

Most backup solutions have built-in testing or verification features:

• Acronis Cyber Protect includes automated backup verification that checks the integrity of backups without a full restore
• Veeam offers SureBackup, which automatically verifies that backed-up virtual machines can actually start and run
• Backblaze allows you to restore files and test them through the web interface without impacting your originals
• Microsoft 365 backup tools (such as Veeam Backup for Microsoft 365) allow point-in-time restores to a test mailbox or SharePoint site

Making Backup Testing a Habit

The most important thing is to schedule backup tests in advance, put them in the calendar, and treat them as non-negotiable. Like fire drills, they only work if they actually happen.

Some practical ways to make this stick:

• Assign one person ownership of backup testing — even if they are not the person who does it, they are accountable for making sure it happens
• Add backup test results to a simple log (a shared spreadsheet works fine) so there is a record of what was tested and when
• Include backup status in a monthly business review, even if it is just one line item
• Set up automated alerts from your backup software to go to a monitored inbox — treat a failed backup alert with the same urgency as a financial alert

Key Takeaways

• A backup that has never been tested cannot be trusted — silent failures are common and easy to miss
• Check backup job completion monthly, perform a sample restore quarterly, and do a full recovery test annually
• Open the files you restore and verify the content — completing a restore is not the same as having usable data
• Use backup tools with built-in verification features where possible (Acronis, Veeam)
• Assign clear ownership of backup testing and keep a simple log of test results
• Ask your IT provider to include recovery testing in your service agreement

Backup testing is just one part of a strong cyber resilience posture. Flagged is a free cyber risk assessment for Australian small businesses that covers backup, recovery, email security, and more. Visit flagged.com.au to find out how your business measures up.