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25/06/2026 2:54 pm
TL;DR: Manufacturers are facing higher ransomware exposure, aging OT estates, and inconsistent IT/OT standards as Industry 4.0 expands connectivity across plants and warehouses, according to Imprivata and the cited IDC infoBrief. Secure access management is now a resilience issue, not just a productivity one, because legacy environments need identity controls that reduce friction without increasing operational risk.
NHIMG editorial — based on content published by Imprivata: Industry 4.0 security challenges and secure access management in manufacturing
By the numbers:
- 57% of manufacturers experienced a ransomware attack in the past year, compared with 49% across all industries.
- 50% of manufacturers report that their OT assets are 15 years old or more.
- 46% cite security concerns with IT/OT integration.
Questions worth separating out
Q: How should manufacturing teams secure access across IT and OT environments?
A: Manufacturing teams should standardise authentication where they can, then apply compensating controls around legacy OT systems that cannot support modern identity patterns.
Q: Why do legacy OT systems increase cyber risk in Industry 4.0 programmes?
A: Legacy OT increases cyber risk because older systems often cannot enforce modern authentication, fine-grained authorisation, or clean lifecycle controls.
Q: How do organisations know whether secure access management is actually working in manufacturing?
A: They should look for fewer password resets, shorter time to access critical applications, reduced use of shared credentials, and fewer unplanned access exceptions.
Practitioner guidance
- Map identity controls to OT constraints Inventory which plant systems support modern authentication, which require compensating controls, and which still depend on shared or static access.
- Reduce shared-access dependence on the factory floor Replace shared logins where possible with role-based access and shift-aware entitlement models so access follows the worker, not the workstation.
- Align authentication design to uptime requirements Measure password resets, login delays, and failed access attempts as operational friction metrics because they directly affect production throughput.
What's in the full article
Imprivata's full article covers the operational detail this post intentionally leaves for the source:
- The IDC-backed breakdown of manufacturing ransomware impact, including downtime cost and ransom-payment patterns.
- The specific access-management pain points tied to shared workstations, password resets, and frontline productivity.
- The discussion of how secure access management supports CMMC 2.0 alignment in manufacturing environments.
- The article's practical framing for balancing modernisation with legacy OT constraints.
👉 Read Imprivata's analysis of Industry 4.0 security and access management →
Industry 4.0 access management: what manufacturing teams are missing?
Explore further
25/06/2026 4:07 pm
Industry 4.0 security is now an identity governance problem, not only an OT modernisation problem. The article describes a manufacturing environment where connected devices, shared workstations, hybrid systems, and production continuity all converge on access control. That means the real risk is not digital transformation itself, but unmanaged identity growth across the plant floor. Practitioners should treat every new integration as a governance decision, not just an infrastructure one.
A few things that frame the scale:
- 70% of organisations grant AI systems more access than they would give a human employee performing the exact same job, according to The 2026 Infrastructure Identity Survey.
- 52% of respondents see AI security decision-making power shifting toward platform and infrastructure teams rather than the executive suite, according to The 2026 Infrastructure Identity Survey.
A question worth separating out:
Q: Who should own identity governance when Industry 4.0 links plant systems to enterprise applications?
A: Ownership should sit with both security and operational leadership, because access decisions affect uptime as much as cyber risk. Manufacturing identity governance works best when plant constraints, OT realities, and IAM policy are handled as one operating model rather than separate programmes.
👉 Read our full editorial: Industry 4.0 security and access gaps are slowing manufacturers
