Beyond the Firewall: Preserving the Air Gap While Keeping OT Networks Secure
Firewalls are essential to network security, but when your critical environments require true isolation, software-based protection has limits. This e-book compares firewalls against data diodes giving your team a clear view of where those limits are and how a hardware-enforced, one-way approach eliminates them.
Firewalls vs. Data Diodes: What You
Need to Know
Selecting the right network security architecture for your critical environment requires more than a feature checklist. This e-book gives ICS (industrial control systems) security architects and OT (operational technology) teams a practical framework to compare approaches, assess vulnerabilities, and evaluate solution fit.
Architectures Compared
Compare how firewalls and data diodes differ in implementation, data traversal, connection handling, and access controls, and why it matters for your critical environments.
Identify the Vulnerabilities
Explore four common firewall pitfalls and how data diode architecture addresses them.
Choose a More Secure Approach
Understand what hardware-enforced, one-way data diode security delivers that firewall-based approaches cannot.
True One-Way Enforcement Without the Trade-Offs
MetaDefender® Optical Diode enforces hardware-level network separation, ensuring data flows in one direction only. No path back into your trusted network.
Closing the Gaps Firewalls Leave Open
Software attack surfaces, protocol vulnerabilities, misconfiguration and rule conflicts, and two-way, channel-enabled C2 are four common firewall failure points. MetaDefender® Optical Diode addresses each through hardware separation, read-only configuration, physical access controls, and a simplified documentation model.
Built for Environments Where Downtime Is Not an Option
MetaDefender® Optical Diode is built for critical environments where uptime, safety, and data integrity demand more than software-only security.
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Everything your team needs to evaluate firewalls against hardware-enforced, one-way data diode security, in one practical e-book.
