
Device Hardening in OT Systems
What are the risks of hardening an OT environment? Are there practical hardening steps that are safe to take? In this episode of OT After Hours, Ken Kully (Delivery Readiness at Rockwell Automation) is joined by Lance Lamont (Special Projects & Protocols Team Lead at Rockwell Automation), Tyler Bergman (Principal Security Consultant at Rockwell Automation), and Zach Woltjer (Technical Account Manager) to discuss the risks of implementing different hardening strategies and standards within OT environments. This discussion was inspired by Lee Carter's article: Device Hardening in OT: How Far Can You Go Before You Break the Plant? Key Takeaways Operational Technology (OT) Device Hardening Challenges: What are the complexities and risks of hardening OT devices? The team discuss real-world experiences of balancing security improvements with operational stability in industrial environments. Importance of Institutional Knowledge in OT Cybersecurity: It's an absolute necessity for OT cybersecurity practitioners to possess deep institutional and operational knowledge, enabling them to communicate effectively with plant personnel and make informed decisions about security interventions. Identifying and Protecting Critical Assets: What are some strategies for identifying the most critical assets in OT environments, often referred to as 'crown jewels,' and the importance of prioritizing their protection to minimize business risk. Practical Guidance for OT Hardening: Actionable advice for OT hardening, emphasizing the need to understand the environment, start with basic controls, and avoid changes that could disrupt operations or exceed the organization's risk appetite. Subscribe Follow and subscribe for more episodes on Apple Podcasts, Spotify, YouTube, or wherever you get your podcasts. Get in Touch 🔗 LinkedIn | YouTube | X | Contact Us


















