Database Replication Using Data Diodes
Overview
This case study explores how Owl Cyber Defense’s data diodes enable secure database replication by ensuring unidirectional data transfer. This solution facilitates secure data replication between operational technology (OT) networks and enterprise IT environments, addressing the stringent security needs of high-risk sectors such as critical infrastructure, defense, and energy. By maintaining data integrity and confidentiality, the approach ensures compliance with industry standards while safeguarding sensitive operations.
Client Profile Industry: Energy (Power Generation), Oil & Gas, and other Industrial Control Systems (ICS)
Location: Middle East/International
Challenge
The client operates a power generation facility with rigorous cybersecurity requirements. To mitigate external threats, the OT network—housing industrial control systems (ICS)—must remain isolated from the IT network. However, this isolation creates data silos, hindering seamless information sharing from OT to IT systems.
Solution
A database replication solution was implemented using unidirectional data transfer to:
- Secure the OT network against external threats.
- Enable replication of operational data from the OT database to the IT database.
- Ensure compliance with regulatory frameworks such as IEC 62443 and NERC CIP.
Solution Components
1. Primary Database (OT Network):
Stores real-time operational data from ICS devices.
2. Owl Data Diode:
A hardware-enforced data diode permitting only outbound data transfer from the OT to the IT network.
Utilizes Owl’s proprietary protocol for high-speed, reliable data transfer.
3. Replication Middleware:
Owl Cyber Defense software that connects to the primary database and replicates its state to the replica database.
4. Replica Database (IT Network):
Maintains a synchronized copy of the primary database for business use.
Key Benefits
- Enhanced Security: Physical enforcement of unidirectional data flow prevents cyberattacks from propagating from the IT to the OT network.
- Regulatory Compliance: The solution adheres to industry standards and regulatory requirements.
- Scalability: The architecture supports the addition of replica databases for future expansion.
- Reliable Data Access: Business units gain access to operational data for decision-making without compromising OT network security.
By leveraging Owl Cyber Defense’s data diodes, the client achieved secure and reliable database replication while maintaining strict network isolation. This solution not only enhanced OT network security but also supported business intelligence and regulatory compliance. Owl’s robust data diode technology and tailored integration demonstrated the viability of database replication in critical infrastructure environments, setting a benchmark for secure data transfer in high-stakes industries.
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