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# Driving OT Security Forward Evolving Architectures for Monitoring and Segmentation in OT
- URL: https://www.cybrsecmedia.com/driving-ot-security-forward-evolving-architectures-for-monitoring-and-segmentation-in-ot/
- Published: 2026-04-17T14:09:56.000Z
- Updated: 2026-04-17T14:09:56.000Z
- Author: Lauren Andrus
- Tags: OT.SEC.CON. 2026, video, OT Security

**Presenter:**

[Blake Gilson](https://www.linkedin.com/in/blakeegilson/?ref=cybrsecmedia.com)

This session focuses on how **OT security architectures are evolving—but most organizations are still stuck in legacy designs that can’t support modern monitoring and segmentation**. The gap between old infrastructure and new threats is where risk lives.

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## **Key takeaways**

- **Legacy architecture is the root constraint**
  - Flat networks, implicit trust, and fragile connectivity
  - Designed for uptime—not security
  - Hard to retrofit without breaking operations
- **Segmentation is critical—but hard to do right**
  - It’s not just “add firewalls”
  - Requires deep understanding of process flows
  - Poor segmentation can disrupt operations or create blind spots
- **Monitoring has to evolve with architecture**
  - Traditional IT monitoring doesn’t translate cleanly to OT
  - You need visibility into **both network traffic and process behavior**
  - Passive monitoring is often preferred to avoid operational risk
- **Architecture drives visibility**
  - If your network isn’t designed for visibility, tools won’t fix it
  - Good architecture enables better detection and response
  - Bad architecture guarantees blind spots
- **Incremental change is the only realistic path**
  - You can’t rip and replace OT environments
  - Security improvements have to be phased and operationally safe
  - Progress = gradual segmentation + improved monitoring

[![](https://storage.ghost.io/c/ab/67/ab676516-71e3-473d-8f73-9e0692f5aaee/content/images/2026/02/Screenshot-2026-02-27-at-8.47.35---AM.png)](https://www.cybrsecmedia.com/conference/)