Building Immutable Backups on Oracle Cloud Infrastructure (OCI): A Deep-Dive Guide
Introdcution: In today’s ransomware-driven threat landscape, traditional backup strategies are no longer sufficient. Attackers increasingly target backup systems themselves, encrypting or deleting recovery points to maximize damage. This is where immutable backups become critical. Oracle Cloud Infrastructure (OCI) provides native capabilities to implement tamper-proof, immutable backups that ensure your data remains recoverable—even in the worst-case scenarios. This blog walks through architecture, design principles, and step-by-step implementation of immutable backups on OCI. What Are Immutable Backups? Immutable backups are backup copies that cannot be altered, deleted, or overwritten for a defined retention period. Key characteristics: Write-once, read-many (WORM) Time-bound retention lock Protection from accidental or malicious deletion Compliance-ready (e.g., financial, healthcare regulations) Why Immutability Matters 1. Ransomware Protection Attackers often: Delete backu...