The lines are blurring between IT and OT networks, leading to both benefits and risks. While these connections enhance production through data sharing and remote access, they expose previously isolated OT systems to cyberattacks.

Traditional security models struggle with this convergence. Zero trust, a security model verifying every user and device accessing the network, offers a solution.

Unique OT Environment Challenges

• Legacy Technology: Older equipment may not support zero trust solutions.
• Budget Focus: OT budgets prioritize uptime over user access features often found in zero trust solutions.
• Lack of Standardization: Complex & diverse OT systems create a large attack surface.
• Downtime Risks: Any downtime can cause production loss or safety hazards.

Despite these challenges, the increasing frequency of attacks due to intrusions and government regulations are pushing OT towards zero trust.

Understanding Zero Trust

Zero trust assumes all users and devices are untrusted and verifies them on a per-transaction basis.

Two key components exist:

• Zero Trust Access (ZTA): Continuously verifies users & devices accessing applications and data.
• Zero Trust Network Access (ZTNA): Requires verification even for applications, hiding them from the internet.

Implementing Zero Trust in OT

• Awareness: Educate users on IT/OT convergence risks & how zero trust mitigates them.
• Process: Maintain control over network access, including vendors and service providers.
• Technology: Carefully evaluate zero trust solutions for compatibility with legacy OT systems and broader supply chain impact.

Wrap Up

Secure Network Solutions (SNS) offers robust Zero Trust solutions. Our comprehensive solution for converged security operations in OT environments, include:

• OT-specific solutions from edge devices to security management tools.
• AI-powered OT threat intelligence to protect against evolving threats.

By adopting a zero trust approach, organizations can secure their OT environments in the face of IT/OT convergence.

To know more about Zero Trust solutions for OT environments, send us an email to [email protected]

Swathi
Author

Working IT professional and a Cyber Security enthusiast. Passionate to write about Cyber Security topics and Solutions. I share my insights as I study articles and trending topics in the field of Cyber Security.