How does restic ensure data integrity?

Restic uses content-addressable storage and cryptographic hashing. This skill automates the 'restic check --read-data' command to verify that every data blob in the repository matches its original checksum.

Does this replace the need for offline backups?

While it provides strong logical protection against ransomware, it should be used as part of a 3-2-1-1-0 strategy that still includes offline or air-gapped copies for physical disaster recovery.

What makes a backup truly immutable?

Immutability is achieved using S3 Object Lock in Compliance mode, which prevents any user, including the root account, from deleting or modifying the data until the retention period expires.

Which storage providers work with this skill?

It is compatible with any S3-compatible storage provider that supports Object Lock, including AWS S3, MinIO, and Backblaze B2.

Immutable Restic Backup

Name: Immutable Restic Backup
Author: mukul975

bymukul975

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4,121

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Security & Testing

Automates the creation of ransomware-resistant, immutable backups using restic and S3-compatible storage with Object Lock.

This skill empowers developers and security engineers to implement a robust 3-2-1-1-0 backup strategy by leveraging restic and S3 Object Lock technology. It provides a standardized approach for initializing encrypted repositories, configuring WORM (Write Once Read Many) storage in compliance mode, and automating deep integrity checks. By integrating cryptographic verification and mandatory retention periods, the skill ensures that backup data remains tamper-proof and recoverable even if administrative credentials are compromised during a ransomware attack.

Key Features

01S3 Object Lock integration for WORM storage compliance

02Automated data integrity verification via restic check --read-data

03Configurable snapshot retention policy enforcement

04Encrypted repository initialization with AES-256-CTR

054,121 GitHub stars

06Automated restore testing and checksum validation

Use Cases

01Implementing a ransomware-resistant backup strategy for critical production data

02Meeting regulatory compliance requirements for tamper-proof data retention

03Automating daily security audits of cloud-based backup repositories

What are Skills?·How to Install

Install with 🐟 Skill.Fish

npx skillfish add mukul975/anthropic-cybersecurity-skills implementing-immutable-backup-with-restic

For use in Claude.ai and ChatGPT

Key Features

01S3 Object Lock integration for WORM storage compliance

02Automated data integrity verification via restic check --read-data

03Configurable snapshot retention policy enforcement

04Encrypted repository initialization with AES-256-CTR

054,121 GitHub stars

06Automated restore testing and checksum validation

Use Cases

01Implementing a ransomware-resistant backup strategy for critical production data

02Meeting regulatory compliance requirements for tamper-proof data retention

03Automating daily security audits of cloud-based backup repositories

What are Skills?·How to Install

Install with 🐟 Skill.Fish

npx skillfish add mukul975/anthropic-cybersecurity-skills implementing-immutable-backup-with-restic

For use in Claude.ai and ChatGPT