The most common backup mistakes – and how to avoid them
March 31st is World Backup Day – a perfect opportunity to check if your data is truly safe! Many companies and individual users still make basic mistakes when creating backups, putting their valuable files at risk.
Below, you'll find a list of the most common errors along with proven ways to avoid them and implement an effective backup strategy.
What Are the Most Common Backup Mistakes?
1. Lack of Regular Backups
Many users only think about backups after a system failure. If you create backups sporadically, you risk losing your most recent files. How can you prevent this? Set a backup schedule and stick to it!
When it comes to system recovery from a backup, two key parameters are crucial. One of them is RPO (Recovery Point Objective).
This parameter defines how much data you can afford to lose when restoring a system from a backup—it depends on the maximum time gap between the last backup and the system failure.
- If you back up once a week, you could lose up to seven days' worth of data.
- If you back up once a day, the maximum data loss is limited to 24 hours.
Conclusion? The more frequent your backups, the lower the risk of data loss when restoring a system from a backup. In extreme cases, when a company cannot afford any data loss, replication mechanisms should be implemented to continuously copy data to a backup system in real time.
2. Lack of Backup Protection
Storing backups in the same location as the original data—such as keeping a backup on the same disk or server—does not protect against hardware failure, ransomware attacks, or theft. If such an incident occurs, you may never be able to recover your data. Simply creating a backup is not enough to ensure successful recovery.
More and more ransomware attacks now target not only systems but also their backups, making it critical to secure them properly.
3. Lack of Effective Backup Testing
Many users assume that as long as a backup has been created, it will work correctly. However, during a crisis, they may discover that the files are corrupted or that the backup does not include crucial data.
The second key parameter for data recovery from backups is:
RTO (Recovery Time Objective) – this defines the maximum time within which the system must be restored after a failure. If data recovery takes too long, the company may suffer significant losses.
How can you avoid these issues?
Consider how quickly you need to restore your system after a failure to prevent major business disruptions.
Test your backup under real conditions – verify whether you can restore your system within the required time or if you need to improve your entire backup strategy.
❗ A common mistake in testing is only verifying the ability to restore individual files or servers without testing the end-to-end system recovery—including all dependencies, such as network connections. This approach does not guarantee successful recovery in the event of a major failure. Worse, it may take significantly longer than expected, costing the company valuable time, money, and customers!
4. Backup Stored in Only One Location
Keeping backups in the same physical location as your primary system poses a significant risk—all your data could be lost in the event of a server room fire, flood, or other disaster. While such events are less common compared to ransomware attacks, it's worth considering whether you're prepared for such a scenario. A second data center for backup storage can be a crucial safeguard.
5. Lack of Backup Encryption
If your backup is not encrypted, a security breach in your backup storage system could allow cybercriminals to access your sensitive data, even if your primary systems are well-protected. Encrypting backups ensures that, even in the event of a breach, your data remains unreadable to unauthorized users.
How to Create an Effective Backup?
🔹 Automate Backups Using the 3-2-1 Rule
Simply copying files to another disk is not enough. To ensure a reliable backup, follow a proven strategy like the 3-2-1 backup rule:
3 copies of your data – one original and two backup copies.
2 different storage media – one could be a disk array, and the other a cloud solution.
1 off-site backup – in case of fire, attack, or hardware failure, a copy should be stored in the cloud or another secure location.
Set up an automatic backup schedule so you don’t have to remember to do it manually. Regular backups are key to data security. Manual copying is prone to human error, so it’s best to use automated backup tools.
🔹 Protect Your Backups from Cyber Threats
To defend against ransomware and other cyber threats, secure your backups using strategies such as:
Offline backups – store a copy in a fully isolated system with no network connection to your production environment. Ensure that access credentials for the backup system are different from those used in the main system.
Immutable backups – these cannot be modified or deleted, even by administrators. This cost-effective solution protects critical data from cyberattacks. Many organizations are adopting this method, and major cloud providers now support immutable backups.
🔹 Regularly Test Your Backups
A backup is useless if you cannot restore data when needed. Regular testing ensures that files are not corrupted and can be recovered.
Test not only individual files or servers but also end-to-end system recovery, including network connections and system dependencies.
Validate that users can perform key business operations in the restored system.
Ensure you can restore data within the expected recovery time (RTO) to minimize business disruption.
🔹 Consider Storing Backups in a Separate Location
To prevent data loss due to fire, hardware failure, or natural disasters, keep an additional backup in a secondary data center or the cloud. Cloud services offer secure storage and encryption, reducing the risk of data loss.
🔹 Encrypt Your Backups for Maximum Security
Use encryption to protect backups from unauthorized access. Most backup tools include built-in encryption features—make sure to enable and configure them properly to keep your data safe.
Creating backups is not an option—it’s a necessity for both businesses and private users. Regular backups, protected from modification or deletion, can save your company from significant losses.
Make a secure backup today—before it’s too late!
Want to learn more about data protection? Contact us, and we’ll help you implement the best cybersecurity practices in your organization! 🔐
