What is a data diode?

Allow data to flow in only one direction between two networks

A Data Diode is a cybersecurity device designed to allow data to flow in only one direction between two networks. It acts like a one-way valve for digital information, ensuring that data can leave one network but cannot return or be sent back. This makes it a powerful tool for protecting sensitive systems from external threats.

Use-cases To the Q&A

Separation between two information security zones

When your data in your open zone should be sent to your secret zone, but never ever the other way around.

Multiple levels of information security zones

When your data on your open zone should be sent to your restricted zone and further analyzed and sent to one of your secrete zones.

Red/Black
Separation

When your systems reside on different and galvanic ally separated electrical grids so should your data.

How It Works

Think of it as a pipeline with a gate that only opens one way. Data moves from a ”source” network (e.g., a secure internal system) to a ”destination” network (e.g., an external monitoring system) but cannot flow back in the other direction.
It achieves this by using a combination of hardware and software to enforce the one-way flow physically.

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Data diodes ready for seamless integration into your critical data pathways.

20

years of development and supply of Data Diodes for mission critical systems.

A crucial tool for secure data communication

No leakage

The fiberoptics inside the datadiode prevent any leakage between the sending end and the receiving end.

Guaranteed one-directioness

The fiberoptic sender and receiver in each end guarantees no transmission the other way around.

Galvanic isolation

The fiberoptic components isolate the sending an receiving ends galvanically from each other.

How a data diode is used

Cybersecurity: Data diodes are used to prevent cyberattacks by ensuring that sensitive systems are isolated from potential threats in less secure networks, like the internet.
Protecting Critical Systems: They are commonly deployed in environments like power plants, military operations, and financial institutions, where ensuring that no information leaks or external control commands can enter is vital.

EXPLORE Data diodes

Benefits of using a data diode

Prevents Data Breaches: Stops attackers from accessing sensitive systems by blocking incoming traffic.
Ensures Data Integrity: Allows secure export of data, such as logs or reports, while keeping critical systems isolated.
Enhances Compliance: Helps organizations meet strict regulatory requirements for data protection.

Example

Imagine a power plant needs to send performance data to a remote monitoring center. A data diode ensures the data can flow out to the monitoring center, but no external commands or malicious traffic can flow back into the power plant’s control systems.