# What are process zones in an industrial security context?

Process zones are logical groupings of assets that perform a similar function or belong to the same industrial process. Defining these zones allows security teams to apply specific communication policies, ensuring that devices within a zone can interact while traffic between zones is strictly monitored and controlled. This architecture is a core component of the ISA/IEC 62443 standard for protecting industrial automation and control systems. Read more in our [pragmatic blueprint for industrial security](https://www.agilicus.com/a-pragmatic-blueprint-for-industrial-cyber-security/).

For more information, see [Industrial Cyber Security Best Practices](https://www.agilicus.com/white-papers/industrial-cyber-security-best-practices/).