Having a backup is not the same as having a working backup.
Most businesses assume their data is protected because something is running in the background doing backups. The problem is that nobody has ever checked whether those backups can actually be restored. And the only time that question gets answered is when something goes wrong and you need the data back urgently.
That is the worst possible moment to find out the answer is no.
Why backups fail silently
Backup systems are easy to set up and easy to forget about. They run quietly, they report green status lights, and nobody looks at them again. But green lights only confirm that the backup process ran. They do not confirm that what was backed up is complete, uncorrupted, and actually restorable.
Common reasons backups fail when you need them:
The backup was running but only covering part of your data. A new server, shared drive, or cloud system was added to your environment and never included in the backup scope. Everything looks fine until you try to restore something from it.
The backup files themselves are corrupted. This can happen silently over time. The data exists, but it cannot be read back correctly.
The restore process takes too long. Your backup works, but restoring your systems fully takes three days. That is three days of downtime you did not plan for.
Ransomware encrypted the backups too. If your backup destination is connected to your network and accessible by your systems, ransomware can reach it. A backup stored in the same place it is protecting you from is not a real backup.
What a proper backup test looks like
Testing a backup means actually restoring something from it. Not checking that the backup ran. Not reviewing a log file. Restoring real data to a real system and confirming it works.
This does not need to be your entire environment every time. A sensible testing approach looks like this:
Pick a specific file or folder and restore it from your most recent backup. Check the content is intact and the file opens correctly. Do this monthly as a minimum.
Restore a full system image or virtual machine to a test environment every quarter. Confirm the system boots, applications load, and data is accessible. This tests the full recovery process, not just individual files.
Check your backup scope twice a year. Make a list of everything that should be protected and verify it is all included. Look for systems, applications, or data stores that have been added since the backup was last reviewed.
Document what you find. How long did the restore take? Were there any errors? What would recovery look like in a real incident? These answers matter when you are under pressure.
Recovery time matters as much as the backup itself
There is a question most businesses have never answered: if your systems went down today, how long would it take to be fully operational again?
This is called your Recovery Time Objective (RTO). It is not just about whether your backup works. It is about how long recovery takes and whether that is acceptable for your business.
For some businesses, being down for 24 hours is manageable. For others, four hours of downtime is catastrophic. The answer shapes what kind of backup solution you should have.
If you have never calculated what an hour of downtime actually costs your business, that is a useful exercise. Multiply your average hourly revenue by the realistic recovery window. The number often justifies investing properly in backup and recovery.
The 3-2-1 rule
If you want a simple framework for backup that is hard to argue with, it is this: three copies of your data, on two different types of storage, with one copy kept offsite.
Three copies means your live data plus two backups. Two storage types means not relying on a single technology or provider. Offsite means at least one copy is somewhere physically separate from your main systems — which also means ransomware cannot reach it.
Most modern backup solutions make this achievable without significant complexity. Cloud-based offsite backup is now cheap and reliable. The barrier is usually not cost. It is the fact that nobody has sat down and thought it through.
Ask your IT provider these questions
If you have an IT provider managing your backups, these are the questions worth asking:
When was the last time a full restore test was carried out? What was the result? What is included in our backup scope and when was it last reviewed? If ransomware hit us tomorrow, what would recovery look like and how long would it take?
If they cannot answer those questions clearly, that tells you something important about the state of your backup.
Not sure if your backup would actually hold up?
We include backup verification as part of our free IT audit for SMEs across Hertfordshire. We will check what is covered, when it was last tested, and whether your recovery time would be realistic for your business.
Get in touch at book a free IT audit or call us to arrange your free audit.