In a legacy system, when a cyber attacker gains access, they can steal data, modify user profiles, firewalls, biometric templates, and privileges, and cover their tracks by deleting or modifying audit trail logs. Breaches of these systems are often not detected until weeks or months after the event. This is often because the traditional approaches of anomaly detection and activity analysis by human experts cannot keep pace with the demands of the modern digital economy. Blockchain, or distributed ledger technology (DLT), is a tool OARO engineers employ to create a cryptographically secure cloud environment where unauthorized changes to critical data assets are automatically detected and purged by the system without any human intervention.