Ransomware remains a major threat to business continuity. A well-designed, layered defense can substantially reduce its impact. Here are the five layers we recommend:
Five layers
- Email security: with 90% of attacks starting through phishing email, this is the first layer
- Endpoint EDR: protection that recognizes unknown malware through its behavior
- Network segmentation: prevent one compromised machine from exposing others
- Immutable backups: unchangeable copies that support recovery without relying on negotiation
- Regular DR exercises: verify that backups work before a breach occurs
Ransomware resilience means protecting business continuity even when an attack gets through.
Setting priorities
If you cannot deploy all five layers at once, start with immutable backups to address the worst-case scenario, followed by EDR and email security. Complete network segmentation and DR exercises within the first six months.
After these steps, even a breach can become a controlled incident rather than an uncontrolled loss. That is the crucial difference.
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