Individual skill
implementing-ransomware-backup-strategy
Designs a ransomware-resilient backup strategy using the 3-2-1-1-0 methodology (3 copies, 2 media types, 1 offsite, 1 immutable/air-gapped, 0 restore errors), configuring RPO/RTO-aligned schedules, isolating backup credentials, and automating restore testing. Use when planning ransomware backup resilience or air-gapped/immutable backup architecture.
skills/implementing-ransomware-backup-strategy/SKILL.md
Source commit 54a798831d2266a3ca61ce68a7acb80b81160d57
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- Last checked
- Nov 9, 2026
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- 35,893
- Repository last updated
- Aug 31, 2026
- License
- Apache-2.0
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- ai-agents Repository topic
- claude-code Repository topic
- cybersecurity Repository topic
- incident-response Repository topic
- mitre-attack Repository topic
- penetration-testing Repository topic
- red-team Repository topic
- security Repository topic
- cloud-security Repository topic
- malware-analysis Repository topic
- ransomware Declared skill tag
- backup Declared skill tag
- incident-response Declared skill tag
- defense Declared skill tag
- recovery Declared skill tag
- immutable-storage Declared skill tag
- engineering Derived category
- testing Derived category
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LICENSEasset · 11,255 bytesSKILL.mdcore · 12,474 bytesSKILL.mdcore · 12,474 bytesSKILL.mdcore · 12,474 bytesSKILL.mdcore · 12,474 bytesSKILL.mdcore · 12,474 bytesSKILL.mdcore · 12,474 bytesSKILL.mdcore · 12,474 bytesassets/template.mddoc · 3,794 bytesreferences/api-reference.mddoc · 6,613 bytesreferences/standards.mddoc · 2,516 bytesreferences/workflows.mddoc · 3,741 bytesscripts/agent.pyruns · 12,072 bytesscripts/process.pyruns · 22,852 bytes
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# Implementing Ransomware Backup Strategy
## When to Use
- Designing backup architecture that withstands ransomware encryption and deletion attempts
- Migrating from traditional backup to ransomware-resilient backup with immutable storage
- Establishing RPO/RTO targets for critical systems and validating them through restore testing
- Isolating backup credentials and infrastructure from the production Active Directory domain
- Meeting cyber insurance requirements for backup resilience and tested recovery capabilities
**Do not use** as a substitute for endpoint protection, network segmentation, or incident response planning. Backups are a last line of defense, not a primary prevention control.
## Prerequisites
- Inventory of critical systems, applications, and data classified by business impact (Tier 1/2/3)