The threat to manufacturing is no longer theoretical. Ransomware groups have learned that production lines are worth more as leverage than corporate databases. When a shift cannot run, the cost is measurable per hour: idle machinery, delayed orders, contractual penalties, and recovery work that compounds well beyond the initial incident. That calculus is precisely what attackers exploit.

The conditions that make manufacturing attractive to attackers also make it genuinely difficult to secure. IT and OT networks that were once physically separated are now connected by design: remote monitoring, vendor access, MES-to-ERP data bridges, and cloud-hosted SCADA interfaces. Each integration that improves visibility also creates a path. Legacy PLCs and older SCADA systems were engineered for availability and longevity, not for authentication or encryption. They cannot be patched on the same schedule as enterprise IT, and in many cases cannot be patched at all. Air gaps that plant managers relied on for a decade no longer exist in connected factories.

Gradion brings IEC 62443 assessment and implementation experience to manufacturing environments in DACH and Asia-Pacific. The work starts from the production floor, not from a generic IT security template, because the priority hierarchy in OT is inverted: safety first, then availability, then confidentiality. Security controls that compromise either of the first two are not acceptable solutions.

What we deliver

IEC 62443 Assessment and Implementation

IEC 62443 is the international standard for industrial automation and control system security. It provides the structured language that manufacturing organizations need to assess, document, and govern security across OT environments. Gradion conducts security level assessments against IEC 62443-3-3 target security levels, designs zone and conduit architectures that reflect actual production topology, and implements access control frameworks appropriate for OT networks. The output is an auditable security architecture, not a slide deck.

OT Network Segmentation

Separating production networks from corporate IT requires more than firewall rules. Gradion designs segmentation architectures using the Purdue Model as the reference framework, defining clear boundaries between Level 0 field devices, Level 1/2 control systems, Level 3 manufacturing operations, and corporate IT at Level 4. Industrial DMZ design, unidirectional gateways where appropriate, and industrial-grade firewall deployment are part of the implementation. The goal is to contain lateral movement if an IT-side compromise occurs, so that the production floor continues to run.

Remote Access Security for Vendors and Maintenance

Vendor remote access is one of the most common entry points for manufacturing incidents. The pattern is consistent: a maintenance engineer connects via shared VPN credentials, the session has broader access than needed, and the connection is never logged in a way that produces actionable forensic data. Gradion replaces generic VPN architectures with zero-trust access models using Zscaler or Palo Alto Prisma, establishing named-user sessions with defined scope, full audit logging, and time-bounded access windows. Vendors get what they need. The network is not exposed beyond that boundary.

Vulnerability Management for OT Assets

OT vulnerability management begins with a complete asset inventory, which most manufacturing environments do not have in a current, accurate state. Gradion builds that inventory, tracks firmware versions across PLCs, HMIs, and network devices, and maps known vulnerabilities to each asset. Where patching is not possible because the system is in continuous production or the vendor no longer supports the version, compensating controls are designed and documented: network-level restrictions, enhanced monitoring, and operational procedures that reduce exposure without requiring a maintenance window that the production schedule cannot absorb.

Incident Response for Production Environments

Incident response playbooks designed for IT environments are not appropriate for production floors. The decision tree is different: isolating a compromised system that runs a production line is not equivalent to taking a file server offline. Gradion develops manufacturing-specific incident response playbooks that account for the priority hierarchy (safety before availability before confidentiality), define clear escalation paths between IT security and OT operations teams, and include pre-approved response actions that do not require a security analyst to understand PLC logic in real time. Tabletop exercises validate the playbooks before an incident occurs.

NIS2 Obligations for Manufacturing Operators

Manufacturers classified as operators of essential services under NIS2 face incident reporting obligations, governance requirements, and supply chain security expectations that are new for many organizations. The regulation covers medium and large manufacturers in sectors including food, chemicals, and industrial machinery. Scope assessment is the correct starting point: understanding whether NIS2 applies, which entities are in scope, and what the gap is between current security posture and compliance requirements.

Gradion's Cybersecurity Safety Check is the structured engagement for this. Running approximately three weeks with six to seven consulting days, the package covers both IT and OT scopes, delivers a cross-domain threat assessment, an executive risk scorecard with red/yellow/green indicators across key domains, and a remediation plan ranked by urgency and feasibility. It is appropriate as preparation for ISO 27001 or NIS2 audit processes, and as a structured response to a recent security incident or post-merger IT/OT integration.

Proof in production

A leading industrial safety technology group engaged Gradion to support its digital transformation. The group's environment is representative of a specific challenge in manufacturing cybersecurity: the intersection of functional safety and information security, where changes to control systems carry consequences measured not just in downtime but in physical safety. The engagement required understanding both dimensions.

Senior Aerospace Thailand, a precision manufacturer supplying components to aerospace and defense OEMs, worked with Gradion to modernize its factory software ecosystem, including data management and production analytics built on Infor CloudSuite Industrial. Precision manufacturing environments operate with tolerances that make any unplanned system disruption consequential. The work reflected Gradion's experience in production environments where reliability and security are not separable.

CTA

Tell us the production environment and the integration points you are most concerned about. We will scope the security assessment.