Backing up your business data is essential. For many businesses, using an external hard drive feels like a practical, low-cost way to stay protected. You plug it in, copy your files, and store it away.
As businesses rely more on digital systems, customer data, and connected platforms, backups need to do more than just exist. They need to be reliable, secure, and ready to support recovery when something goes wrong.
The Real Risk: It’s Not Just Data Loss
Data underpins how your business operates:
- Customer records
- Financial information
- Job management systems
- Emails and communications
- Internal workflows
If that data becomes unavailable, even temporarily, the impact can be immediate:
- Staff can’t access systems
- Customers experience delays
- Work stops or slows down
- Revenue is affected
That’s why backups aren’t just about storage. They’re about business continuity and the ability to continue operating, even when something goes wrong.
Connected devices share the same risk
When an external hard drive is plugged into your computer, it becomes part of your IT environment. This means if your system is impacted by a cyber incident, your backup can be exposed too. If your backup is affected at the same time as your systems, your ability to recover is significantly reduced.
Backups rely on people remembering
Most external drive backups are manual and that means they rely on someone remembering to run the back and following the same process each time.
Sometimes this often leads to missed backup cycles, outdated copies of files and important data not being copied. When a cyber attack happens and the backup is needed, it may not reflect the current state of your business.
Physical hardware has limitations
External hard drives are still physical devices and they can fail, get damaged or become corrupted without warning. If your entire backup strategy relies on a single device, that creates a single point of failure which is exactly what backups are meant to avoid.
They’re stored in the same location
In many cases, the external drive is stored in the same office as the systems it is backing up. That means both are exposed to the same risks:
- Theft
- Fire
- Flood
- Power-related incidents
If both the primary system and the backup are affected at the same time, recovery becomes extremely difficult.
They don’t guarantee recovery
Perhaps the most important point is that having a backup doesn’t guarantee you can recover. Without a clear process for restoration and without regular testing businesses often don’t realise there’s an issue until they try to recover data. At that point, it may be too late.
What the ASD and ACSC Say About Backups
In Australia, the Australian Signals Directorate (ASD) and the Australian Cyber Security Centre (ACSC) provide clear guidance on how businesses should approach cyber risk including backups.
They are part of the Essential Eight mitigation strategies, which are widely recognised as a baseline for reducing cyber risk.
The Essential Eight highlights that effective backups should:
- Be performed regularly and align with how your business operates capturing data often enough to avoid meaningful loss.
- Be protected and separated then stored to limit exposure to everyday systems and threats. This often includes maintaining offline or otherwise isolated copies to reduce the risk of compromise.
- Restrict access should only be accessible by authorised users.
- Be tested regularly to ensure that backups can actually be restored
Why this matters
Backups can become your last line of defence but that only works if the backup hasn’t been affected, the data is complete and up to date and your business knows how to restore it.
What a More Reliable Backup Approach Looks Like
Backup strategies need to evolve. Instead of relying on a single device, a more effective approach focuses on structure, consistency, and recovery readiness.
1. Backups should be scheduled to run automatically in the background. This helps ensure that important data is captured even during busy periods.
2. Maintaining more than one copy reduces the risk of a single failure impacting your entire backup strategy. This aligns with widely recommended practices such as the “3-2-1” approach.
3. Backups are stored in a way that protects them from being impacted by everyday system activity or incidents.
4. Knowing how to restore your data is just as important as creating the backup. A structured approach ensures that data can be restored quickly and downtime minimised.
5. Backup strategies should be reviewed to ensure they continue to meet business needs.
How Harvey Norman Technology for Business Can Help
Backup and recovery is approached as part of your managed IT environment and is not just about storing data it’s about making sure your business can keep operating if something goes wrong. We work with businesses to:
- Move beyond manual, device-based backups
- Implement structured, consistent backup processes
- Align with best-practice frameworks like the Essential Eight
- Ensure backups are secure, protected, and accessible when needed
- Put clear plans in place so systems and data can be restored quickly
Final Thought
External hard drives can still be part of your backup setup. On their own, they’re often not enough for today’s business environment. When something goes wrong, your backup becomes more than a file copy. It becomes your path back to recovery after a cyber incident.
Get secure, reliable backup protection today! Contact Harvey Norman Technology for Business to learn more about how you can safeguard your data.
