Active Fiber Monitoring
This video challenges the view that fiber optics are intrinsically secure by illustrating how hackers can use eavesdropping devices to read optical signals. It also introduces active fiber monitoring, which is a feature of many Allied Telesis switches, designed to monitor fiber links for signs of data theft. For more information, please contact GovDirect.
What is Active Fiber Monitoring?
Active Fiber Monitoring is a security capability that continuously monitors fiber optic links for small changes in signal power. These tiny power losses can be early indicators that someone is trying to tap or eavesdrop on the fiber.
Instead of waiting for a visible outage or a user complaint, the system keeps a constant eye on the health of the fiber connection. When it detects unusual power loss patterns, it can trigger alerts so your team can investigate and respond before data is exposed.
How does Active Fiber Monitoring help protect data?
Active Fiber Monitoring helps protect data by treating the fiber itself as a security signal. It:
- Watches for tiny power losses that are often associated with attempts to tap into a fiber link.
- Provides early warning when the optical signal changes in ways that don’t match normal operations.
- Supports incident response by giving your team a clear indication of where and when a suspicious event occurred.
Because it is always on, it can help you rethink how you secure data in transit, adding a physical-layer safeguard alongside your existing encryption and network security controls.
Why monitor for tiny power losses on fiber links?
Monitoring for tiny power losses matters because fiber tapping often introduces only a very small change in signal strength—too subtle to cause an outage but enough to allow eavesdropping.
Traditional tools focus on traffic patterns, access control, and encryption. Active Fiber Monitoring adds a different layer by:
- Detecting physical-layer anomalies that may not show up in normal network logs.
- Highlighting suspicious changes in the optical signal before they become a larger security issue.
This helps you reimagine fiber as an active security sensor, not just a transport medium, giving you more visibility into potential eavesdropping attempts.
Active Fiber Monitoring
published by GovDirect
GovDirect provides high-level technology solutions for business, government, healthcare and education. A SBA Woman Owned Small Business (WOSB) organization we are staffed with technology sales specialists, making us a leader in specialized IT and Audio Visual solutions. Our dedicated account managers will help you tailor the right technology products and services to fit your specific needs.
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