The past pandemic forced us to rethink our cybersecurity programs and planning. As we continue to navigate the challenges posed by IT/OT convergence and the increasing need for securing critical infrastructure, it is essential to learn from past experiences and avoid common mistakes. I have discussed similar topics in many previous conferences. In this article, we will explore the challenges of deploying IT solutions in OT environments, share insights from implementing industrial cybersecurity, and discuss strategies for enhancing cybersecurity in a post-pandemic world.
Recognizing the Differences and Learning from Experiences
The IT/OT convergence has brought new opportunities and challenges for organizations. As corporate IT takes on the responsibility for OT assets, it’s essential to acknowledge the differences between these two domains and develop tailored cybersecurity strategies to protect critical infrastructure. In addition, it’s crucial to learn from past experiences and avoid the pitfalls that have led to poor application of cybersecurity controls for ICS networks.
Insecure actions in OT, such as disabling domain policies to enable USB access or sharing admin passwords, and configuring jump servers are all too common and can compromise the security of critical systems. To prevent such actions, it’s important to educate end-users and maintenance engineers about the potential consequences and invest in proper cybersecurity measures.
Top Mistakes to Avoid in a Post-Pandemic World
While working to balance the equation of plant operations, employee health, and cost control, organizations must avoid common mistakes, including:
- Extending Corporate IT solutions to cover OT: IT solutions are not designed for the OT environment and may not comply with industrial control system (ICS) security standards.
- Using remote operation or troubleshooting solutions without proper security and infrastructure.
- Delaying upgrades and migrations of obsolete systems without taking necessary measures.
Short-Term and Long-Term Recommendations for Enhancing Cybersecurity
To enhance cybersecurity maturity and mitigate risks, consider the following 5 short-term actions:
- Invest in industrial-grade remote access solutions designed for OT environments.
- Implement USB security solutions specific to OT systems.
- Harden your Process Control Network devices to enhance system maturity.
- Prioritize upgrading obsolete OT systems, especially network components.
- Apply proper zoning and segmentation between IT and OT networks.
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" Remember, the fundamentals play a key role in this journey. Overlooking the basics is a mistake too costly to afford.
For long-term OT strategy planning, consider these recommendations:
- Conduct a cybersecurity risk assessment to uncover potential security gaps.
- Design an OT-specific cybersecurity program with a focus on maintaining high maturity levels.
- Invest in training and awareness programs, acknowledging that human factor often becomes the weakest link in an organization’s security.
- Develop comprehensive incident response, disaster recovery, and business continuity plans inclusive of OT cybersecurity.
- Construct OT-specific policies and procedures, and seamlessly integrate them into corporate ones.
- Regularly evaluate your hardening level to maintain cybersecurity maturity.
The principle “Slow and steady wins the race” certainly holds true in the realm of cybersecurity. By establishing achievable goals and concentrating on one step at a time, organizations can make meaningful progress without feeling overwhelmed. It’s crucial to resist the temptation to take shortcuts – investing in fundamental security measures assures substantial returns in the long run, contributing to a more secure and resilient organization.
“Cybersecurity isn’t a sprint – taking the necessary time to get things right will ultimately lead to success.”
Conclusion
As we move forward, it’s crucial to learn from past experiences and avoid common mistakes in IT/OT convergence. By acknowledging the differences between IT and OT assets, understanding the unique demands of OT systems, and working collaboratively to develop tailored cybersecurity strategies, we can pave the way for a more secure and resilient digital future. Let’s join forces to maintain a healthy and secure environment for both our employees and systems.
ITOTconvergence OTcybersecurity digitaltransformation cybersecuritymaturity collaboration riskmanagementinnovation postpandemic lessonslearned
