Use Case
IEC 62443 Compliance Across Multiple Plants
Industry: USE CASE | MANUFACTURING
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Building One Consistent OT Security Standard Across Multiple Plants
Three plants, three different histories, and three different opinions about what secure meant. A packaging manufacturer operating a corrugated converting plant, a flexible film extrusion plant, and an injection-molded closures plant needed to demonstrate a consistent security posture across all three sites ahead of a cyber insurance renewal.
Each plant had grown independently, with different PLC vendors, different network designs, and no shared baseline. Shieldworkz assessed all three plants against the same IEC 62443 maturity model and built one maturity baseline and a phased roadmap across all three locations.
Value proposition: Consistent IEC 62443 maturity assessment, cross-site risk prioritization, unified OT governance, plant-specific segmentation roadmaps, phased monitoring, and executive-ready security reporting across multiple manufacturing locations.
Manufacturing OT Security Challenges
Manufacturers operating multiple plants often develop security practices independently. Each location may have its own technologies, priorities, security controls, and decision-making processes:
No shared baseline. Each plant defined its own security posture with no common way to compare maturity across locations.
Insurance deadline. A cyber insurance renewal required documented evidence of an appropriate security framework at every site.
Mixed maturity. One plant had industrial firewalls and managed switches, while another was still operating with unmanaged switches.
Local decision-making. Each plant's engineering manager independently set security priorities without a shared budget or portfolio-wide decision process.
Inconsistent audit history. Findings from an audit at one plant had little bearing on what the other locations could demonstrate.
Understanding the Multi-Plant Manufacturing OT Risk Landscape
Manufacturers operating multiple plants rarely have identical OT environments. Different locations may have different PLC vendors, network architectures, security controls, legacy systems, and operational practices.
When plants develop their own security philosophies independently, corporate leadership can struggle to determine how locations compare, where the greatest risks exist, and which investments should be prioritized first.
Without a common maturity baseline, an organization may have three different assessments of its security posture instead of one portfolio-wide view.
Shieldworkz addresses this by assessing every plant against the same IEC 62443 maturity model, ranking findings across the entire portfolio, establishing a common governance framework, and creating practical security roadmaps for each location while working toward a shared target state.
Common Cybersecurity Challenges Affecting Multi-Plant Manufacturing
Different OT security maturity levels across manufacturing plants
No common framework for comparing security posture between locations
Different PLC vendors and network designs across plants
Legacy Windows systems and unsupported firmware
Unmanaged network infrastructure at less mature sites
Locally defined security policies and security priorities
Disconnected audit findings across individual plants
How Shieldworkz Solves Multi-Plant OT Security Challenges
Shieldworkz provides an end-to-end OT security program designed to establish a consistent security foundation across multiple manufacturing sites:
Multi-Site IEC 62443 Gap Assessment: Each plant is independently assessed against the same IEC 62443 maturity model to create a consistent basis for comparison.
Cross-Site Risk Prioritization: Findings from all three plants are ranked together so leadership can compare and prioritize risk across the entire manufacturing portfolio.
Common Zone Model: One architecture pattern is adapted to each plant's specific network layout and operational requirements.
Segmentation Roadmap: Zoning is planned independently for each plant while moving toward the same target security state.
Unified Governance: One policy framework replaces separately defined security rules at individual plants.
OT Asset Discovery: Passive inventory is performed at each site to establish what is actually deployed across the manufacturing environment.
Phased Monitoring Rollout: Continuous monitoring is sequenced across the plants, beginning with the least mature environment.
End-to-End Platform Capabilities
Multi-site OT asset discovery across manufacturing environments
IEC 62443 maturity assessment using one consistent model across all plants
Cross-site risk prioritization allowing leadership to compare findings across locations
Common OT zone model adapted to each plant's specific architecture
Plant-specific segmentation roadmaps designed toward a shared target state
Vulnerability assessment identifying legacy Windows systems and unsupported firmware
Phased continuous monitoring across multiple manufacturing locations
The Business Value of IEC 62443 Across Multiple Plants
A consistent OT security framework gives manufacturers a clearer understanding of security maturity and risk across their entire plant portfolio:
All three plants assessed against a single IEC 62443 maturity baseline for the first time.
One consolidated risk picture replaced three disconnected sets of findings, giving leadership a single prioritized list.
Unified governance policies adopted across all sites, replacing locally defined security rules.
A segmentation roadmap defined for each plant, while maintaining a shared target security state.
Cyber insurance renewal supported through consistent security documentation across all three locations.
Security awareness training delivered consistently to engineering staff at every plant.
Secure Your Manufacturing Environment
Having different plants does not have to mean having different definitions of OT security.
Shieldworkz helps manufacturers establish a common IEC 62443 maturity baseline, compare security risks across locations, establish unified governance, develop practical segmentation roadmaps, and progressively deploy monitoring across multiple plants.
The objective is to give leadership one clear view of OT security maturity and risk across the manufacturing portfolio, while allowing each plant to follow a roadmap suited to its own operational environment.
Schedule Your Free Consultation with Shieldworkz OT Security Experts
Get the Full IEC 62443 Compliance Across Multiple Plants Use Case
Understand how a packaging manufacturer assessed three different manufacturing plants against one IEC 62443 maturity model, consolidated findings into a single portfolio-wide view, established unified governance, and created a phased roadmap for improving OT security across all locations.
Book Your Consultation Today!
Unify and strengthen OT security across all your plants with a consistent IEC 62443-based approach. Book your OT security consultation with Shieldworkz today.
