The cyber‑diode is a high‑security data diode designed for the secure export of data from sensitive IT and OT environments. It enforces strictly unidirectional data flows, allowing systems such as machines, plants, or control networks to transmit data to less secure networks while completely blocking any incoming communication. The solution is intended for industrial monitoring, critical infrastructures, and highly sensitive production environments where protection against malware, manipulation, and unauthorized access is essential. cyber‑diode combines hardware and software mechanisms to ensure reliable data transfer while maintaining strict network separation.

Key Features

One‑Way Data Transfer Enforcement Prevents any inbound communication.

• Physically and logically enforced unidirectional flow
• Elimination of back channels and misconfiguration risks

Reliable Data Transmission with Status Feedback Ensures data completeness.

• Minimal feedback channel using a status bit
• Confirmation of successful data delivery without data return

Industrial Protocol Support Enables integration in production environments.

• Support for OPC UA
• Support for FTP, FTPS, SMTP, TCP, UDP, and Syslog

OPC UA Native Security Protects industrial data flows.

• Native encryption and authentication
• Secure transmission of machine and sensor data

Security by Design Architecture Minimizes attack surface.

• Minimalistic code base
• Microkernel‑based operating system

Hardware‑Based Appliance Provides robust deployment.

• Dedicated hardware solution
• Resistant to software manipulation through secure boot

Benefits

Maximum Network Isolation Protects critical systems.

• Complete blocking of inbound attacks
• Strong separation of security zones

Secure Industrial Monitoring Enables safe data analysis.

• Export of production and sensor data
• Support for predictive maintenance scenarios

High Reliability of Data Transfer Reduces uncertainty.

• Guaranteed completeness of transmitted data
• Controlled transfer speed based on receiver capability

Reduced Configuration Risks Prevents operational errors.

• One‑way function cannot be disabled
• Protection against misconfiguration

Support for Critical Infrastructure Requirements Addresses high security demands.

• Suitable for KRITIS environments
• Designed for sensitive industrial processes