Why Public Utilities Need an OT Security Strategy Beyond IT Defenses
Excerpt:
Across Canada, municipalities are embracing digital transformation — from smart traffic systems and water treatment automation to integrated building controls. But as connectivity grows, so does the exposure of critical Operational Technology (OT) to cyber risk.
Full Article:
Over the last few years, Canadian municipalities and utilities have faced a new class of cyber threats targeting the systems that make communities work — water distribution, energy delivery, waste management, and public transit.
The 2023 Cyber Centre (CSE) alert on industrial control systems vulnerabilities warned that “attackers are shifting from stealing data to disrupting physical operations.”
The challenge: most public organizations have mature IT security, but their OT networks are still flat, unmonitored, or outdated. Systems that control pumps, sensors, and substations are often running on older Windows builds or vendor-managed firmware, making them hard to patch and easy to exploit.
Grovemex was created to help close this gap. We support public-sector entities by:
- Designing defense-in-depth architectures for control networks following the ISA-95/Purdue model.
- Implementing industrial network segmentation and visibility using technologies like Fortinet, Claroty, and Nozomi Networks.
- Assisting municipalities in aligning their environments with IEC 62443 and NIST 800-82 standards for critical infrastructure.
- Advising on secure remote access and vendor management — key weaknesses identified in several recent Canadian incidents.
For example, in 2021, the Oldsmar, Florida water utility attack underscored how remote access misuse can lead to operational disruption. In Canada, several provinces — including Ontario and Alberta — have since issued guidelines to improve OT access control and monitoring.
Grovemex helps organizations build that maturity early. By uniting engineering, cybersecurity, and risk management expertise, we enable municipalities to plan upgrades that protect operations without sacrificing reliability or compliance.
Key takeaway: The future of smart cities depends on secure, visible, and resilient OT foundations — and Grovemex is here to help build them.
