Data Breaches & Downtime: Why Cybersecurity in Manufacturing Can’t Be Overlooked

In an age where digital transformation is reshaping every corner of the UK economy, the manufacturing sector stands at a critical crossroads. Smart factories, industrial IoT, and automated systems are driving unprecedented efficiency—but they’re also introducing significant cyber risk. For UK manufacturers, the message is clear: cybersecurity is no longer optional.

The Growing Threat Landscape

The UK’s National Cyber Security Centre (NCSC) has repeatedly warned that the manufacturing industry is a growing target for cybercriminals. Why? Because it presents a perfect storm: complex supply chains, legacy systems, and high-value data—all increasingly connected, but often poorly protected.

High-profile ransomware attacks like those on JBS Foods and Norsk Hydro have shown how devastating cyber breaches can be, leading to operational paralysis, multimillion-pound losses, and reputational harm. Closer to home, UK manufacturers such as KP Snacks and Morgan Advanced Materials have experienced production delays and prolonged downtime from similar incidents.

Downtime Is Not Just an IT Issue

For manufacturers, downtime is money—and not just a little of it. A 2023 report from Make UK estimated that unexpected production stoppages cost UK manufacturers an average of £100,000 per hour. Whether it’s a targeted ransomware attack or a supply chain compromise, cyber incidents can bring entire factories to a halt.

It’s also important to remember that the impact isn’t limited to operations. A data breach may expose sensitive client or supplier information, trigger regulatory penalties under GDPR, and cause long-term damage to customer trust and business relationships.

Why Manufacturers Are Uniquely Vulnerable

Many manufacturing environments operate on a mix of legacy Operational Technology (OT) and newer IT systems. This hybrid infrastructure often lacks standard security protocols and is notoriously difficult to patch or update without disrupting production. Meanwhile, the rise of Industry 4.0 means that more systems than ever are connected to the internet—opening doors to threat actors.

Common weaknesses include:

• Outdated or unpatched industrial control systems

• Poor segmentation between IT and OT networks

• Insecure remote access for third-party suppliers and engineers

• Lack of cybersecurity training for floor staff

What Can UK Manufacturers Do?

The good news is that solutions exist—and many of them are practical and cost-effective, even for SMEs. Here’s where to start:

1. Conduct a Cybersecurity Audit

Understand your current risk profile. Assess both IT and OT infrastructure for vulnerabilities. Identify critical assets and data that need protection.

2. Segment Your Networks

Isolate operational technology systems from your main IT network. If a breach occurs, this can prevent lateral movement and limit the damage.

3. Regularly Patch and Update Systems

Yes, even legacy ones. Work with vendors to ensure all systems—especially those connected to the internet—are as secure as possible.

4. Train Your Workforce

Cybersecurity is not just an IT department responsibility. Employees on the factory floor need to know how to spot phishing emails, avoid risky behaviour, and report suspicious activity.

5. Develop an Incident Response Plan

Be ready for when—not if—a cyber incident occurs. Have a clear, tested plan that includes communication, containment, and recovery protocols.

6. Align with UK Government Guidelines

The NCSC offers robust, practical resources tailored to UK organisations. Frameworks like the Cyber Essentials scheme are a great starting point for improving your cyber hygiene.

A Strategic Advantage, Not Just Risk Mitigation

Forward-thinking manufacturers are realising that strong cybersecurity isn’t just a defensive strategy—it’s a competitive advantage. Clients and partners increasingly expect robust protections. Regulatory scrutiny is rising. And in a connected world, trust is currency.

By embedding cybersecurity into core business strategy, UK manufacturers can not only avoid costly breaches and downtime, but also position themselves as leaders in a digital-first future.

Final Thoughts

Cybersecurity in manufacturing is no longer about if you’ll be targeted—it’s when. As cyber threats continue to evolve, so too must the defences. For the UK’s manufacturing sector to thrive in the age of Industry 4.0, digital resilience must be treated as mission-critical.