Data Diode
Noun · Security & Infosec
Definitions
Data Diode is a hardware-enforced one-way communication mechanism that allows data flow in only one direction. Security teams use it to enforce trust, reduce exposure, improve detection, or standardize secure operations in production environments. Its value depends on correct configuration, lifecycle management, and surrounding controls, because weak defaults, poor integration, or missing visibility can create gaps that attackers exploit.
In plain English: Data Diode is a security concept or control that helps organizations protect systems, manage trust, and notice suspicious behavior before damage spreads.
Example: "After the review, the security team rolled out Data Diode in the affected environment, documented the operating procedure, and verified through logs and test cases that the control reduced exposure without breaking normal administrative or user workflows."
Related Terms
- Confidential Computing
- Air-Gapped Network
- Bastion Host
- Bluetooth Sniffing
- Deep Packet Inspection
- DNS Cache Poisoning
- DNS Exfiltration
- Domain Fronting
- Egress Filtering
- Electromagnetic Emanation
- Network Segmentation
- Port Scanning
- Snapshot Isolation
- App Sandboxing
- Bare Metal Security
- Chroot Jail
- Container Escape
- Credential Guard
- Cross-Domain Attack
- Cross-Tenant Attack
- Firmware Security
- Micro-Virtualization
- Multi-Tenancy Security