FOX‑IT Data Diode cuts off cyber threats without losing control of your network
Full OT and classified network isolation with zero risk of control loss.
The data diode blocks unauthorized traffic while allowing secure transfer of logs, reports, and updates — always in one direction.
IS YOUR COMPANY REALLY SECURE?
The data diode filters information before
the attackers can get to it
A data diode is a hardware barrier that controls the direction of information flow — out only.
It allows no inbound connections, eliminating the risk of eavesdropping, attacks, or takeovers.
Secure your infrastructure before someone else does it — their way.
One-Way Security Wall
A data diode is a physical barrier that completely blocks inbound connections — data can only exit the network. Unlike firewalls, it cannot be bypassed or reprogrammed. This ensures no external device can access your network. Ideal for OT, ICS, and classified environments.
Stress-Free Reporting Without Risk of Return
The data diode ensures that data leaving your network — reports, logs, or statistics — reaches its destination without any possibility of unauthorized return communication. Even if malicious code is injected in the data or an attacker tries to trigger a system response, the diode physically prevents it. Outgoing information remains secure, and the risk of a return attack is entirely eliminated.
One Direction, No Exceptions
Unlike configurable or rule-based systems, the hardware-based data diode cannot be broken or tampered with. Its construction blocks all return connections, even accidental ones. Regardless of data type, protocol, or evasion technique — anything that leaves the network cannot come back. That’s full separation — no exceptions, no loopholes.
Guaranteed One-Way Transmission
The data diode gives you full control over information flow — data can exit the network, but nothing can come back. VPN tunnels, hidden ports, or reverse-shell exploits are physically impossible. The unidirectional flow is hardware-enforced, with no bypass or gaps. This isn’t just effective — it’s technical proof that the network is truly isolated.
ONE-WAY TRANSFER?
Be sure your data goes out and nothing comes back
Before expanding or integrating your network, make sure you truly control your data flows. The data diode gives you certainty — data leaves your network, but no threat has any chance of coming back.
Verified isolation
The diode is a physical barrier — it operates one-way only, without exceptions and without any way to bypass it.
Full compliance, less stress
Meet ISO, NIS2, and GDPR requirements — without complex configurations.
Security that doesn’t stop operations
Update, report, and collect logs without the risk of return attacks.
ARE YOU SURE YOUR DATA IS SAFE?
Request an
IT Security Audit
Don’t wait for something to happen. One mistake, an accidental click, or an unpatched vulnerability can cost you your data, clients, and reputation. An IT audit will help you identify threats before cybercriminals do.
How does the FOX-IT data diode work?
Understand how it works in 3 steps – brief, technical, and clear.
1. Secure data transfer
Ensures safe data transmission thanks to the one-way data diode, which physically blocks any return flow. This is the most reliable way to separate networks and eliminate risk.
2. One-way communication
Allows data to flow only in one direction – from a higher to a lower security zone.
It cannot be bypassed or reversed.
3. Complete protection
With the FOX data diode, you gain absolute protection – unauthorized access or data leaks are physically impossible. This solution is certified at the EAL7+ security level.
Protecting Your Secrets
Protecting Your Assets
FOX Data Diodes – Military-Grade
Hardware for Your Data
EAL7+ Protection and NATO Certifications
FOX data diodes meet the highest security standards – certified with Common Criteria EAL7+ and NATO COSMIC TOP SECRET.
One-Way Data Transfer
Physical network separation – the diode enforces unidirectional flow, impossible to bypass logically or programmatically.
Resistance to Extreme Conditions
Designed for critical environments. Immune to EMI, industrial conditions, and APT-class cyberattacks.
No OS,
No Threats
No software means no vulnerabilities, no backdoors, no updates. The diode is attack-proof and requires no patching.
Frequently Asked Questions About Data Diodes
Before you decide to implement a data diode, it’s worth addressing common concerns.
Below are answers to the most frequently asked questions – technical, organizational, and practical.