When a factory is forced to halt production, costs mount and customers need answers. Ransomware groups are increasingly exploiting that pressure by targeting the systems industrial organisations rely on to keep operating.

Data shows that 1,183 manufacturing ransomware victims between 1 January and 29 July 2026, have increased by up to 39.7% year on year. European victims increased by a whopping 85.4%.

These were attacks against manufacturers, not necessarily their operational technology (OT). But attackers do not need to compromise industrial controllers to stop production. Disabling the applications, accounts or infrastructure supporting them can be enough.

Why are Industrial environments attractive to Ransomware groups?

The attraction is a combination of costly downtime, interconnected systems and difficult recovery. Criminals can put pressure on an organisation by interrupting operations, stealing sensitive information or threatening both.

For an industrial business, the impact can include missed production targets, delayed customer orders and an inability to coordinate suppliers. Recovery may require engineering teams to validate systems before restarting physical processes.

The commercial logic is straightforward: the harder an organisation finds it to operate without its systems, the more pressure attackers can apply. That does not mean a victim will pay, or that payment would restore operations.

Production disruption creates immediate pressure

The ransomware incident at Coca-Cola-owned Fairlife in July 2026 provides a clear example.

On 16 July, Coca-Cola confirmed unauthorised access to Fairlife systems, including production-related systems, in connection with a ransomware event. Production operations in the United States were temporarily suspended. The company said product quality and safety were unaffected, and Canadian production was not impacted.

On 27 July, Coca-Cola announced that the majority of production had resumed across Fairlife’s four US facilities. It also confirmed that data had been taken. Existing inventory had largely protected retail availability, and the company did not expect a material financial impact based on the information then available.

The incident demonstrates how ransomware can affect production-related systems and interrupt physical operations. It does not establish that attackers manipulated industrial controllers, and it should not be described that way.

For other manufacturers, the practical question is whether production could continue if a similarly important system became unavailable.

IT and OT dependencies can extend the impact

Industrial operations depend on more than the equipment on the factory floor. Identity services, engineering workstations, production scheduling and other supporting systems can all influence whether a site can operate.

Some of these dependencies sit within OT. Others connect operational processes to corporate IT.

Dragos highlighted this classification problem in its 2026 OT/ICS Cybersecurity Report, noting that engineering workstations and human-machine interfaces can be incorrectly described as IT simply because they run Windows. Their operating system does not change their operational role.

The defensive implication is that organisations need to understand what each system does and what depends on it. A network boundary alone does not explain whether production can survive the loss of a shared service.

Remote Access can expose critical systems

Remote support helps engineers and suppliers maintain equipment without being physically present. However, poorly controlled access can also provide a route into operational environments.

The NCSC’s OT connectivity guidance, published in January 2026, recommends reducing exposure through measures such as just-in-time access and brokered connections through controlled gateways. These approaches help avoid directly exposing OT assets to external networks.

Organisations should be able to establish who has remote access, which assets they can reach, when that access is needed and how it can be revoked.

An access arrangement that remains active long after a maintenance task ends creates unnecessary exposure. The same applies when a supplier account has broader permissions than its work requires.

Older systems can be difficult to secure

Replacing or updating an industrial asset may require operational planning, compatibility checks and a suitable maintenance window.

Those constraints can leave organisations managing older systems for extended periods. The NCSC recognises that many OT systems are difficult to update or replace, making strong boundary protection and segmentation particularly important.

This should influence how exposures are prioritised. Teams need to consider whether an asset is reachable, what it controls and which protections already exist.

Where immediate remediation is impractical, restricting connectivity and strengthening monitoring can help reduce risk while a longer-term fix is planned.

What does Foxconn’s 2026 incident tell us?

On 12 May 2026, Foxconn confirmed that some of its North American factories had experienced a cyberattack. Its company announcement said response measures had been activated and affected factories were returning to normal production.

Separately, the Nitrogen ransomware group claimed responsibility and alleged that it had stolen data. Those claims went beyond what Foxconn confirmed publicly and should be treated as attacker claims.

The confirmed factory disruption illustrates the operational consequences of an attack on a major manufacturer. It also raises a supply-chain question: how would customers maintain production if a critical supplier could not deliver?

For security and operational leaders, supplier dependency belongs in ransomware planning. Your organisation’s resilience can be affected by an incident outside its own environment.

Does the evidence show more direct attacks on OT?

The evidence shows increasing ransomware pressure on industrial organisations. It does not mean every manufacturing incident involves direct compromise of OT devices.

A report published in February 2026 recorded 119 ransomware groups targeting industrial organisations during 2025, compared with 80 in 2024, collectively affecting 3,300 organisations. These are 2025 observations published in 2026, rather than 2026 incident totals.

There are several ways an industrial organisation can experience operational disruption:

• Ransomware affects systems within the OT environment.
• An attack disables IT services that production depends on.
• Operators isolate systems to contain an incident or because they cannot confirm that continued operation is safe.

Understanding which scenario occurred matters for investigation and recovery. All three need to be considered when planning resilience.

How can organisations reduce OT Ransomware risk?

Start with a practical objective: understand what could stop operations and reduce the routes through which an attacker could cause that outcome.

Build visibility around operational dependencies

Maintain an inventory that connects assets to their purpose, owners and critical processes. Include engineering workstations, remote access infrastructure and the supporting services needed to keep production running.

Use that information to identify where a single compromised account, connection or service could affect multiple operational areas.

Control Access and Limit Movement

Apply least privilege to employees, contractors and suppliers. Protect external access with strong authentication, remove unnecessary permissions and review access when roles or supplier relationships change.

Segmentation should restrict communication between IT and OT and within operational environments. The NCSC identifies segmentation, phishing-resistant MFA and least privilege as important OT boundary protections.

Plan How to Isolate Without Losing Control

Containment decisions should be agreed with operational teams before an incident.

The NCSC recommends establishing an isolation plan. Where the architecture supports it, organisations may be able to disconnect an affected service or revoke a supplier’s access while maintaining other necessary connections.

Exercises should test who authorises isolation, how operational teams communicate and what evidence is required before reconnection.

Test Recovery Against a Production Scenario

A useful recovery exercise should answer more than whether a backup can be restored.

Could the organisation recover the systems needed to restart a critical process? Are configurations available and trusted? Which suppliers or engineers would be required? What checks must be completed before production resumes?

These questions turn ransomware preparation into an operational exercise involving security, engineering and business continuity teams.

Strengthen OT Resilience With Integrity360

Integrity360 helps organisations assess and strengthen OT security through consulting, auditing, engineering and incident response services. Our work includes risk analysis, asset classification, ransomware resilience testing and support for secure OT infrastructure.

The priority is to understand your operational exposures, address the weaknesses that matter most and prepare your teams to respond when disruption occurs.

Speak to Integrity360 about protecting your OT environment

FAQs

Why do ransomware groups target OT environments?

Industrial organisations can face significant pressure when production or essential services stop. Attackers seek to exploit that pressure, particularly where operational dependencies, exposed access or difficult recovery increase the impact.

Can Ransomware stop production without infecting industrial controllers?

Yes. Production may depend on other systems that become unavailable, or operators may need to isolate systems during an incident. A production shutdown alone does not prove that industrial controllers were compromised.

What is a confirmed Industrial Ransomware example from 2026?

Fairlife temporarily suspended US production following a ransomware event disclosed on 16 July 2026. Coca-Cola confirmed that production-related systems were involved and later announced that most production had resumed across four US facilities.

What should organisations prioritise to reduce OT Ransomware risk?

Priorities include asset and dependency visibility, controlled remote access, segmentation, risk-based remediation and tested isolation and recovery procedures. Security and operational teams should agree these measures together.