5 Biggest Industrial Cybersecurity Threats to Manufacturers

Envision a modern factory floor humming with activity. Robotic arms put parts into place, conveyor belts transport products across the facility and sensors blink in rhythm. Then, suddenly, a still silence. Is it a power outage? A mechanical breakdown? Nope, the facility has been victimized by an industrial cybersecurity threat. A ransomware payload in this case has locked down the programmable logic controllers (PLCs), freezing production mid-shift. Technicians scurry to make things right, but the damage is done; hours of downtime, huge sums lost.

This isn’t a bad dream, unfortunately, but a growing reality that manufacturers must come to grips with. While information technology (IT) departments prioritized security for decades, the emergence of connected manufacturing has exposed the factory to a new generation of cyber threats. Operational Technology (OT) — the operating systems that manage and track physical processes such as robotics, production lines and HVAC systems — wasn’t created with cybersecurity in mind. But as these systems meld with internet-connected IT networks, they’ve become a bullseye for attackers exploiting every vulnerability in sight.

In fact, manufacturing is now the most targeted sector for cyberattacks, with several industry reports estimating that 22 to 26 percent of such attacks are aimed at manufacturing businesses. Just how common are these attacks? The Manufacturing Security Report of 2025 states that more than 1,500 attacks a week are aimed at the sector. 

And the stakes, of course, couldn’t be higher. A single breach can disrupt industrial networks, expose intellectual property, compromise worker safety and destabilize critical infrastructure that keeps facilities running. Understanding these threats is the first step in a strong risk management strategy.

Why the Factory Floor Is a Prime Target for Cybersecurity Threats

Manufacturing is now the most targeted industry for cyberattacks because it’s where value meets vulnerability., The factory floor holds assets ranging from proprietary designs to real-time production data that are not only valuable but often very exposed as well.

Here are a few reasons why manufacturers fall victim to high-tech threats: 

• Treasured targets: Intellectual property (IP), proprietary designs and confidential trade data are a treasure chest to plunder for nation-states and industry rivals. One lone breach can lead to the robbery of years of innovation. 
• Downtime disasters: Manufacturing, more than almost any other sector, is beholden to strict schedules and deadlines. A cyberattack that halts production even briefly can cost millions in missed output, failed deadlines and reputational damage with clients, customers and business partners.
• The IT/OT convergence: Legacy OT systems were founded upon the bedrock of reliability, not security. As they become integrated with modern IT networks for efficiency and data sharing, they become exposed to attacks that take advantage of obsolete protocols and unsecured software.

Cybercriminals understand these weaknesses well. With many manufacturers still maturing their OT cybersecurity defenses, threat actors increasingly target factories with attacks specifically designed to bypass standard protections. The days are over when it was sufficient to simply protect the office network; modern security must now extend to the shop floor. Let’s take a look at the five biggest cybersecurity threats facing today’s factories — and how to fight back.

1. Ransomware & Extortion Attacks

Ransomware — which essentially works by encrypting critical data and industrial control systems — effectively holds organizations hostage until a ransom is handed over. This is without a doubt one of the most damaging threats to manufacturing.

Picture a crisis where attackers permeate a factory’s supervisory control and data acquisition (SCADA) system and shut down the PLCs that regulate temperature, pressure and motor speeds. Production freezes and safety systems falter. The company must decide — pay the ransom or be faced with lengthy downtime and costly recovery.

JBS Foods, a major meat-processing company, was victimized by a cyberattack in 2021 that wreaked havoc on operations across 13 plants and forced the company to pay an $11 million ransom. These incidents are increasingly targeting OT environments, where downtime is disastrous and recovery a substantial undertaking. 

A massive worry for those in the manufacturing industry is the major proportion of ransomware pinpointing the sector. In 2024, a reported 71 percent of ransomware attacks targeted the industry.

2. Phishing & Social Engineering

Not every attack starts with code. Some begin with just a simple email. Phishing employs misleading messages to lure employees into providing credentials or downloading malware.

One example is a worker in the maintenance department who receives a seemingly innocent email that appears to be from a trusted vendor. It includes what looks like a link to a software update. One little click later, malware quietly installs, and attackers have an open door to the business’ industrial network. From there, it’s an easy lateral move into the OT systems.

A real-world case involved a phishing email that resulted in a breach compromising both IT and OT networks, spurring a shutdown of production lines. Occasional human error is unavoidable and thus one of the weakest links in cybersecurity.

3. Supply Chain Attacks

Factories today are reliant on a network of third-party vendors for software, hardware and various services. And a weakness in any one of them can put the entire network at risk.

Supply chain attacks regularly involve introducing malicious code into a software update or compromising a hardware component before its delivery. These updates come from trusted sources and often aren’t vetted carefully.

The well-known SolarWinds cyberattack illustrated just how dangerous this can be. While it wasn’t manufacturing-specific, it clearly demonstrated how attackers can infiltrate thousands of organizations through a lone compromised vendor. It showed that, for factories, one tainted firmware update could provide attackers widespread control over machinery or access to vital production data.

4. Intellectual Property (IP) Theft

Factories are gold mines of proprietary information, from product designs and formulas to detailed manufacturing processes. IP theft is often subtle and covert, with attackers silently withdrawing data over long periods of time. 

Such breaches are mainly carried out by advanced persistent threats (APTs), frequently connected to nation-states or industrial espionage factions. They apply sophisticated techniques — like hiding in encrypted traffic or exploiting zero-day vulnerabilities — to dodge detection.

The fallout is substantial. A stolen design can result in counterfeit products, diminished market share and legal conflicts. Making things even worse, companies may not be aware they’ve been compromised until it’s far too late.

5. Inside Threats

Not all threats are external. Disgruntled staff, contractors or financially driven insiders can also wreak immense damage. Picture a recently terminated technician who can access control systems. Prior to departing, they disable safety protocols or pirate confidential data. In the absence of smart access controls and monitoring, these actions might be unnoticed until after the fact.

Insider risks are especially damaging as they take advantage of valid access. Since staff members understand the systems, the workflows and the weak links, deterring these attacks relies not just on technology, but upon a workplace environment of vigilance and accountability.

How to Defend the Factory Floor 

A multilayered, proactive approach is urgently needed when it comes to cybersecurity on the factory floor. Here are three vital strategies to assuage the most prevalent threats:

• Network segmentation: By separating your IT and OT networks, you can curtail the spread of an attack. If malware subverts the office network, segmentation can stop it from entering production systems. Apply firewalls and secure gateways to regulate traffic between segments.
• Thorough access controls: Instill your workplace with stringent access regulations, from multi-factor authentication (MFA) and role-based permissions to frequent audits. Make absolutely certain that only authorized personnel have access to critical infrastructure. Monitor and record their actions for full accountability. 
• Employee training: Cybersecurity is everyone’s responsibility, not just an IT job. Train all staff, from top executives to assistant floor technicians, to spot phishing attempts, adhere to strict protocols and report anything suspicious. Regular drills and refreshers will keep staff on high alert.

Together, these measures support a resilient cybersecurity framework and strengthen incident response capabilities. Tech itself can’t prevent every threat, but when combined with vigilant policies and a well-trained workforce, it can be the foundation of resilient vulnerability management. 

Coast: The CMMS That Protects Your Workflows

A computerized maintenance management system (CMMS) like Coast plays a vital role in securing the factory floor. It’s not just about tracking asset inventory but forging transparency, accountability and resilience — key elements of a strong cybersecurity program. Coast does this by ensuring:

• Digital audit trails: Coast not only automatically logs every work order but notes who performed it and when. The result is a clear audit history that can help pinpoint suspicious activity or any unauthorized revisions to equipment management.
• Standardized procedures: Coast empowers teams to integrate safety protocols and cybersecurity checks into every single work order. This lessens human error (a common attack vulnerability) and bolsters consistency across shifts and teams.
• Centralized data: Coast helps teams spot anomalies quickly, track equipment health and improve incident response — including ones created by cyberattacks — by centralizing asset and maintenance data. When systems are intertwined and transparent, nothing slips through the cracks.

In a connected factory, Coast isn’t just a maintenance tool — it’s a cybersecurity partner that keeps workers on the same page.

The Future of Factory Security 

Cybersecurity is a key operational foundation that is no longer restricted to the IT department. As factories embrace IIoT and advanced automation, the risk management strategies become more complicated. Defending the factory floor depends upon a multilayered approach that combines sophisticated tech, coordinated workflows and a vigilant staff. Platforms like Coast become the center of this resilience, helping manufacturers stay ahead of the game when it comes to cyberthreats — and keeping production safe, secure and on track.