---
title: Your Legacy PLCs Were Never Built for This
description: Learn how network segmentation protects the devices that can't protect themselves.
image: https://info.opto22.com/hubfs/segmnt1_zones_1200x663.png
---

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# Your Legacy PLCs Were Never Built for This

## How network segmentation protects the devices that can't protect themselves

Are you a manufacturer who is trying to modernize operations without replacing the PLCs and control systems that are still working? Your machines are still running, but you face the challenge of connecting their OT data to IT networks.

These legacy systems weren't made to hold up to today's cybersecurity threats when they are exposed to the internet or business networks.

So what's the answer? Read **a new technical article** that offers practical solutions—and see why network segmentation is vital to unlocking OT data in a secure way.

![segmnt1\_zones\_1200x663](https://info.opto22.com/hs-fs/hubfs/segmnt1_zones_1200x663.png?width=700&height=387&name=segmnt1_zones_1200x663.png)

Here are just a few of the topics the article covers:

- IEC 62443 international cybersecurity standard
- Edge computing
- Secure gateways
- Configurable firewalls
- Dual-network architectures

Whether you're an engineer, system integrator, or a plant manager working with brownfield facilities, this article provides some practical guidance. Learn how segmented networking offers a realistic alternative—extending the useful life of your assets while enabling access to the data needed for analytics, monitoring, and Industry 4.0 initiatives.

 

 

### Read the technical article:

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