The Cyber Risks of IT and OT Convergence in Manufacturing
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Article Summary
As manufacturers adopt smarter, more connected technologies, the convergence of IT and OT is creating new cyber risks across both digital and physical operations. Legacy systems, increased connectivity, and limited built-in security can leave production environments vulnerable to disruption, product quality issues, and broader business continuity threats.
As manufacturers continue to modernize operations, the convergence of digital and physical systems is creating both new opportunities and new risks. Technologies that improve efficiency, visibility, and automation can also introduce vulnerabilities, as connected systems and devices create more access points for cybercriminals to exploit. One of the most important cyber risk issues facing the industry today is the growing overlap between IT (Information Technology) and OT (Operational Technology), and the impact that connection can have on business continuity.
Modern manufacturing is undergoing a fundamental shift. Artificial intelligence tools, Internet of Things (IoT) devices, smart machinery, and cloud-connected platforms are being integrated into production environments at a rapid pace. According to a recent report from Rockwell Automation, over 56% of manufacturers are actively piloting smart manufacturing technology, with another 20% planning future investments.
This digital transformation is creating real operational value, but it is also creating a new and urgent risk: the convergence of IT and OT.
Here’s why that distinction matters:
- IT refers to the business systems most people are familiar with: email, servers, financial software, and endpoint detection response platforms.
- OT refers to the systems and hardware that control your physical operations: programmable logic controllers (PLCs), SCADA systems, robotics, and industrial control systems (ICS) on the production floor.
Historically, these two environments have operated in isolation. OT systems were “air-gapped,” or physically separated from the internet. Today, those walls are coming down, driven by the demand for real-time data, remote monitoring, and operational efficiency.
The challenge manufacturers face today is that many OT systems were never designed with cybersecurity in mind. Connecting legacy industrial equipment to modern networks is like leaving an unlocked door in a newly built vault. One compromised controller can shut down production, or worse, silently sabotage product quality before anyone notices.
As the production floor becomes more connected to the internet, whether directly or through corporate networks, IT and OT security can no longer be treated as separate issues. Cyber risk now moves more easily across both environments, which means security must account for the full operation. This level of alignment is something cyber insurers are paying close attention to, and gaps can affect not only your operations, but your insurability as well.