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OT Cybersecurity Leadership Responsibility: 5 Insights Executives Can’t Ignore

A few months ago, I sat down with a CEO who had just come through a serious cyberattack on his OT (Operational Technology) systems. As he described the days that followed—lost productivity, crisis meetings, and difficult conversations with clients—I could feel the weight of OT cybersecurity leadership responsibility on his shoulders. His story isn’t unique. Many organisations still run OT systems that were never designed for today’s connected world, yet they are now prime targets for increasingly sophisticated cyber threats.

Reading Fortinet’s 2024 State of OT and Cybersecurity Report only reinforced what I’ve seen in these conversations. The data makes one thing very clear: OT cybersecurity leadership responsibility is no longer a technical side issue. It demands the full attention and commitment of executive teams. Here are five critical insights from the report that I believe every CEO, CFO, and business owner should take seriously.

1. Intrusions are rising faster than leadership expects 

This year alone, nearly one‑third of organisations reported six or more cyber intrusions, up from just 11% the year before. These aren’t minor IT glitches. They shut down production lines, disrupt logistics, and drain teams who should be focused on growth. For any business leader, these numbers are a wake‑up call. The threat to OT environments is real, growing, and directly linked to OT cybersecurity leadership responsibility. Now is the time to reassess whether your organisation is truly prepared—or simply hoping not to be the next headline.

2. Leadership must visibly step up 

The report shows that responsibility for OT security is increasingly moving into the executive ranks, often to the CISO, CIO or VP of operations. That’s encouraging, but it’s not enough. In my view, OT cybersecurity leadership responsibility must be embraced by the entire C‑suite. Cyber risk affects compliance, customer trust, and ultimately valuation. The most effective CEOs and CFOs I speak with don’t delegate this topic away; they lead the conversation, ask uncomfortable questions, and make sure security is anchored in strategy, not just in IT.

3. Security maturity is improving, but visibility is still dangerously low 

Fortinet’s findings show some progress in OT security maturity, yet one statistic stands out: only about 5% of organisations report full visibility into their OT systems. That means the vast majority are operating partly in the dark, with blind spots attackers can exploit. From my experience, this is where OT cybersecurity leadership responsibility becomes very practical. Leaders who insist on clear asset inventories, shared dashboards, and frequent reporting gain a more honest view of reality—and can prioritise investments where they matter most. Without visibility, even the best tools are flying blind.

4. Brand and reputation are on the line

As a business leader, you know that protecting your brand is non‑negotiable. Fortinet’s report highlights that more than half of organisations hit by intrusions saw a steep increase in damage to brand awareness, up sharply from the previous year. Regulatory rules often require public disclosure, and negative coverage can linger long after systems are restored. The recent CrowdStrike incident is a good reminder of how quickly confidence and revenue can be shaken when trust is broken. OT cybersecurity leadership responsibility is therefore not only about keeping operations running—it is about protecting the reputation your teams have spent years building.

5. Strategic investment in OT cybersecurity pays off 

There is good news. Many organisations are now investing in measures like network segmentation, role‑based access, and OT‑specific monitoring. When I work with clients, I often emphasise that OT cybersecurity leadership responsibility includes making smart, long‑term investments—especially when budgets are tight. The cost of not acting is almost always higher than the cost of building the right defences. Organisations that treat security as a strategic investment, not a reluctant expense, consistently emerge stronger and more competitive.

A call to action for OT cybersecurity leadership

As OT cybersecurity becomes a core pillar of business continuity, it’s time for CEOs and CFOs to lead from the front. OT cybersecurity leadership responsibility means more than signing off on a budget; it means asking for clear metrics, challenging assumptions, and making cyber resilience part of the company’s DNA. If there’s one message to take away from Fortinet’s 2024 report, it’s this: the responsibility for OT security now firmly belongs in the boardroom.

At Nautilus OT, we work every day with organisations that are ready to take that step. By combining better visibility, pragmatic controls, and committed leadership, I believe businesses can not only safeguard their operations but also thrive in today’s high‑risk landscape. OT cybersecurity leadership responsibility, when embraced fully, becomes a source of strength—not just protection.

Jeroen van Es

Jeroen van Es

Global Executive MBA | Strategy and Growth

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