Why Basic Backups Aren't Enough — And What Immutable Backups Actually Do

The backup problem most small businesses don't know they have

Most small businesses think they have backups. What they actually have is a scheduled copy job that runs nightly to an external drive or a cloud folder — and hasn't been tested in 18 months.

Here's why that's a problem in 2026:

Modern ransomware attacks your backups first. Before encrypting your main files, ransomware typically deletes or encrypts your backup locations. If your backup tool is running as an admin process on the same network, the ransomware can reach it.

Untested backups fail when you need them. Studies consistently show 30–40% of backup restore attempts fail on the first try — due to corrupted files, changed file paths, or misconfiguration discovered only at the moment of crisis.

Backup ≠ recovery. A backup is the file. Recovery is being able to restore that file to a working state, on a working system, within an acceptable timeframe. These are different problems.

What immutable backups actually mean

An immutable backup is a copy of your data stored in a way that cannot be modified or deleted — not by ransomware, not by an admin who makes a mistake, and not by an attacker who has gained full access to your network.

Acronis Cyber Protect achieves this through:

Write-once storage: Once written, backup data cannot be overwritten for a defined retention period (typically 30–90 days)

Air-gapped replication: A copy exists in a physically separate cloud infrastructure that your main environment cannot directly access

Behavioral detection: Monitors for file encryption patterns and pauses suspicious processes before they can reach the backup vault

The practical result: even if ransomware fully compromises your primary environment, yesterday's clean backup is untouched and restorable.

What "instant restore" actually means for a 10-person business

For a 10-person business with 2TB of data:

Full system restore from Acronis: typically 2–4 hours

Individual file recovery: minutes

"Bare metal" restore to a replacement device: 4–8 hours

Without immutable backups, a ransomware incident typically costs 3–10 days of disruption plus the recovery fee (often €5,000–€20,000 for professional data recovery, if it's even possible). With tested immutable backups, it's a bad morning — not a business-ending event.

What this costs

For a 10-person business: €100–€200/month for Acronis Cyber Protect Cloud, including:

Daily backups of all devices and Microsoft 365 data

90-day immutable retention

Quarterly restore test support

Replication to a secondary data centre

That's €1,200–€2,400/year to protect against an incident that typically costs €10,000–€50,000 when it happens.