How AI-driven vulnerability management is changing the OT ecosystem

Operational technology (OT) environments have evolved rapidly. Once these were isolated systems, but today they are deeply integrated with IT networks, cloud platforms, and Industrial Internet of Things (IIoT) devices. While this connectivity brings efficiency and innovation, it also expands the attack surface, making industrial environments prime targets for cyber threats.

Nevertheless, there is a challenge: OT systems weren’t designed with cybersecurity in mind.

Many run on legacy equipment that is difficult, if not impossible, to patch. Strict uptime requirements limit maintenance windows, and proprietary protocols make implementing security controls complex. Worst of all, cyber risks in OT don’t just mean data breaches — they can result in real-world consequences, from production downtime to safety hazards and environmental damage.

That is why a reactive, checklist-based approach to OT vulnerability management (OT VM) is no longer enough. Organizations need a proactive, risk-based strategy that prioritizes safety, reliability, and compliance with industry standards like IEC 62443, NIS2, and NERC CIP.

Dive into this article to learn more about the operational risks of reactive security practices and how AI-powered, proactive strategies can strengthen resilience, improve incident response, and protect critical business operations. Find out how a proactive IT and OT vulnerability management checklist could help you avoid costly incidents, stay ahead of evolving threats, and strengthen compliance.

Why manual vulnerability management falls short

Despite the rising risks, many organizations still manage OT vulnerabilities in the old-fashioned way, i.e. with painful manual processes that end up in huge amounts of vulnerabilities to be managed by multiple teams across the IT and OT departments.

If this sounds familiar, you’re not alone. Here are some other indicators your vulnerability management approach needs to be relooked at.

• Tracking vulnerabilities in spreadsheets quickly become outdated.
• Risk assessments are only conducted once or twice a year.
• Teams rely on separate IT and OT teams that don’t always communicate effectively.
• Your systems lack visibility into industrial assets, making risk assessments incomplete.

The consequences?

Vulnerabilities remain unaddressed for months, sometimes years, with devices facing serious risks or being replaced as a final attempt to remove the danger. This leaves OT environments exposed to ransomware attacks, zero-day vulnerabilities, and supply chain threats.

Take the Colonial Pipeline attack in 2021, for example, where a single compromised password led to fuel shortages across the U.S. East Coast. Another is the Norsk Hydro in 2019 — a ransomware attack paralyzed its aluminum production, costing the company an estimated $75 million. These incidents prove that outdated security practices can have massive financial and operational impacts.

How AI is transforming OT vulnerability management

AI-driven security isn’t just a future possibility — it’s happening now. Organizations are turning to AI to transform how they identify, assess, and mitigate vulnerabilities in their OT environments. Let’s see how it makes a difference:

1. You can now gain full visibility into OT assets.

You can’t protect what you can’t see. Specialized OT security tools like CPS Security Platforms provide deep visibility into industrial assets, firmware versions, and vulnerabilities. AI enhances this by automatically mapping asset criticality, helping organizations focus on protecting what matters most.

A manufacturing plant using AI-driven asset discovery identified 20% more unmanaged devices than previously recorded. Without this insight, these unknown assets would have remained vulnerable entry points for attackers.

2. Gear up to automate vulnerability detection and risk prioritization.

Continuous, passive vulnerability scanning can detect security weaknesses without disrupting industrial processes. AI takes this further by correlating vulnerabilities with real-world threat intelligence, pinpointing which ones are most likely to be exploited.

Instead of treating all vulnerabilities equally, AI prioritizes them based on their business impact and risk exposure.

In the energy sector, AI-driven analytics flagged a vulnerability in a critical PLC that attackers were actively exploiting worldwide. The organization prioritized fixing this over lower-risk vulnerabilities, preventing a potential attack.

3. Get ready for accelerated remediation with automated workflows.

Automating your vulnerability management workflow significantly speeds up your response times. Instead of tracking issues manually, AI integrates with maintenance systems (CMMS) and security tools (SIEM/SOAR) to create automated remediation workflows. For legacy OT systems that can’t be patched, AI-driven virtual patching and network segmentation can provide alternative protection.
A water treatment facility struggling with patching restrictions used AI to simulate attack paths. The result? A new network segmentation strategy that blocked threats before they could reach critical control systems.

4. Use AI for predictive security and threat intelligence.

AI isn’t just about responding to known threats; it can predict attacks before they happen. By analyzing historical attack data, real-time telemetry, and behavioral analytics, AI-driven platforms can identify potential risks early. Machine learning models detect unusual patterns in device behavior, flagging threats before they escalate.

A chemical plant using AI-powered anomaly detection spotted an unusual increase in network traffic to a remote site. Investigation revealed an attacker probing their systems, allowing them to stop the breach before damage was done.

5. Unify IT and OT security efforts.

Cybersecurity isn’t just an IT problem — it’s an OT problem, too.

AI-driven vulnerability management platforms provide a centralized view of risks, helping IT and OT teams work together more effectively. Regular tabletop exercises can further strengthen collaboration, ensuring teams are ready to respond when an incident occurs.

A logistics company that struggled with poor IT-OT coordination used AI to create a shared vulnerability risk dashboard. This improved decision-making and cut their remediation time in half.

The future of OT vulnerability management: Proactive, AI-driven security

Manual, reactive vulnerability management isn’t enough to protect today’s connected OT environments. AI enhances every stage of the process — from asset discovery to risk prioritization and predictive threat defense.

Let me reiterate. This is what AI brings to OT security:

• Full visibility of all industrial assets and vulnerabilities
• Risk-based prioritization using real-time threat intelligence
• Automated remediation workflows for faster, smarter response
• Predictive insights to prevent attacks before they start
• Improved collaboration between IT and OT teams

Cyber threats aren’t slowing down, and neither should your security strategy. Organizations that rely on manual processes will fall behind, leaving their operations at risk. By embracing AI-driven vulnerability management, companies can reduce remediation time from months to days, minimize operational disruptions, and enhance resilience against cyber-physical threats.

The future of OT security is proactive. It’s automated. And it’s powered by AI.

>> Ready to take the first step? Move beyond reactive fixes with Atos’ IT & OT vulnerability management proactive checklist. This practical guide will help you prioritize risks based on operational impact, safety, and compliance — so that you can get ahead of threats, not just respond to them.

Download the checklist today.

Let’s build a stronger, more resilient security strategy together.

>> Learn more about how we are seamlessly integrating IT with OT for our customers: OT Security solutions and services - Atos

Posted on: 30/06/2025