Cybersecurity for:
Manufacturing & Industry
Cybersecurity for manufacturing and industry protects OT/ICS systems, SCADA networks and PLC controllers from cyberattacks. Learn about threats, NIS2/IEC 62443 requirements and solutions for the manufacturing sector.
71% of manufacturing companies experienced an OT-targeted cyberattack in the past 12 months
Source: Dragos OT Cybersecurity Year in Review 2025
Top Threats
OT Ransomware
Ransomware spreading from IT to OT networks halts production lines — the average downtime cost exceeds $1.3M per day.
Supply Chain Attacks
Compromised component suppliers, firmware or SCADA software allow attackers to enter production networks through trusted channels.
PLC Exploitation
Vulnerabilities in PLC and RTU controllers enable manipulation of physical processes — from changing production parameters to damaging equipment.
Insider Threats
Employees with OT access, service engineers and subcontractors can intentionally or accidentally disrupt production processes.
Lack of IT/OT Segmentation
Flat networks connecting offices to the shop floor allow attackers to jump from an infected PC straight to machine controllers.
Regulatory Requirements
NIS2
Manufacturing entities as important entities must implement risk management, threat monitoring and 24h incident reporting.
IEC 62443
International standard for industrial automation cybersecurity — required by many OEMs and system integrators.
ISO 27001
Information security management system covering both OT environments and production data.
Why does manufacturing cybersecurity require a specialized approach?
The manufacturing sector is currently the most attacked industry globally — surpassing finance and energy. The convergence of IT and OT (Operational Technology) networks has created a new attack surface where ransomware can spread from an employee’s email straight to PLC controllers managing the production line.
Legacy SCADA systems, PLC controllers from the 1990s and lack of network segmentation are the norm in many plants. Attacks like those on Norsk Hydro (2019) and Colonial Pipeline (2021) demonstrate that consequences can reach billions of dollars.
Key threats to the manufacturing sector
Ransomware — production shutdown in minutes
A ransomware attack on the OT environment is not just data loss — it physically halts production lines, ruins product batches and causes multi-day shutdowns. Average downtime costs in manufacturing exceed $1.3M per day, which is why companies often pay the ransom.
IT/OT convergence as an attack vector
The Purdue model assumes strict layer separation, but in practice many factories connect office networks to control systems. A single click on a phishing link in the office can open a path to SCADA systems on the shop floor.
Supply chain attacks
Compromising PLC controller firmware, SCADA software updates or a component supplier’s system enables attacks through trusted channels. SolarWinds and Kaseya demonstrated the scale of this threat.
Regulatory requirements for manufacturing
The NIS2 directive classifies the manufacturing sector as important entities, and IEC 62443 is becoming the de facto industry requirement. Combined with ISO 27001, manufacturers must implement comprehensive risk management covering both IT and OT.
How nFlo helps manufacturing companies
- OT/ICS Security Audit — asset inventory, vulnerability assessment and segmentation gap analysis
- OT/ICS Penetration Testing — controlled security testing of industrial systems
- SOC as a Service — 24/7 monitoring with OT threat detection
Schedule a free consultation — we will analyze the security of your production infrastructure.
Related Industries
Our Services for This Industry
OT/ICS Penetration Testing
Find OT vulnerabilities before attackers do. Safe testing without production risk.
Security Audits
Assess your security posture and receive a prioritized remediation roadmap.
Security Operations Center (SOC)
Detect threats 24/7 without the cost of your own SOC. Average response time 15 minutes.
Articles for This Industry
DynoWiper — Technical Analysis of the December Cyberattack on Polish Energy Sector
11/19/2025
Chained Exploitation of n8n: How RidgeBot Detects Workflow Takeover in Practice
11/9/2025
NIS2 directive is now in force - what does it mean for your business?
11/4/2025
Cyber warfare and business: how does online geopolitics threaten your business?
9/1/2025
Ransomware in Pharma and Biotech — Threats and Drug Production Protection
8/28/2025
APT Attacks on Energy Infrastructure: Analysis and Defense
8/22/2025
Cybersecurity Checklist for Energy Sector — 2026
8/17/2025
How to Conduct OT Security Audit in Energy Company
8/13/2025
How to Implement IT/OT Network Segmentation in Energy
8/10/2025
How to Implement SOC in Energy Sector
8/9/2025
NIS2 for Energy Sector: Requirements and Step-by-Step Implementation
8/7/2025
Ransomware in Manufacturing: How to Protect Production Lines from Attack
8/3/2025
Frequently Asked Questions
Why are manufacturing companies targeted by cyberattacks? ▼
Manufacturers combine critical OT systems with IT networks, often use legacy systems without updates, and have low tolerance for downtime — making them likely to pay ransoms.
How does OT cybersecurity differ from IT? ▼
OT systems prioritize availability and physical safety over confidentiality. Patching is difficult, device lifecycles span 15-25 years, and restarts may require hours-long production line ramp-up.
Does NIS2 apply to manufacturing companies? ▼
Yes. NIS2 classifies the manufacturing sector as important entities, requiring risk management, monitoring, incident reporting and regular audits.
How to secure PLC controllers and SCADA systems? ▼
Network segmentation following the Purdue model, OT traffic monitoring, controller hardening, access control and regular vulnerability assessments.
Where to start with OT cybersecurity in a factory? ▼
Start with an OT security audit identifying assets, vulnerabilities and segmentation gaps. Then implement IT/OT segmentation, monitoring and an incident response plan.
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