TL;DR: Manufacturing cyberattacks can halt production, delay shipments, and force manual recovery, according to Securden’s guide on privileged access management in plant environments. The operational lesson is that standing access, shared credentials, and unmanaged vendor or machine identities turn cyber risk into uptime risk, so PAM becomes a production control, not just an audit control.
At a glance
What this is: Securden’s guide maps PAM use cases for manufacturing and argues that privileged access failures can turn cyber risk into production stoppage.
Why it matters: It matters because IAM, PAM and NHI teams in industrial environments have to govern human, vendor and machine access without disrupting plant uptime or auditability.
Context
Manufacturing privileged access is a governance problem because plant environments combine IT, OT, vendors and automation in systems that were often built for availability before security. When access is always on, shared, or poorly monitored, a single credential becomes a route into production-critical operations rather than just a login.
The article frames PAM as the control layer that constrains this exposure across operators, engineers, OEMs and non-human identities. That makes the topic directly relevant to NHI governance, vendor access governance and endpoint privilege management, especially where legacy industrial systems still depend on long-lived credentials.
Key questions
Q: What breaks when vendors use shared privileged access in manufacturing environments?
A: Shared vendor access breaks accountability, because the organisation can no longer tie a command, configuration change, or data action to one person. It also weakens investigation and containment because a single credential may be reused across multiple staff members or subcontractors. Manufacturing teams should treat this as a control failure, not a convenience issue.
A: Unmanaged vendor access creates risk because industrial systems often have long lifecycles, multiple external maintainers, and limited visibility into who is connected at any moment. Without centralized control, organisations lose traceability, cannot easily limit session privileges, and struggle to prove compliance during audits. That combination increases both security exposure and regulatory friction.
Q: How should teams govern service accounts and automation secrets in plant operations?
A: Treat them as governed identities, not embedded configuration. Inventory the accounts and secrets used by scripts, APIs, CI/CD and machine-to-machine workflows, then assign ownership, rotate credentials on schedule and remove hardcoded values that cannot be audited or revoked cleanly.
Q: How can manufacturers reduce the blast radius of privilege on endpoints and OT systems?
A: By removing standing local admin rights, limiting elevation to approved tasks and separating plant access from general IT administration. That narrows the damage a compromised endpoint or misused account can do and makes privileged activity visible enough to investigate and audit.
Technical breakdown
Why standing access becomes production risk in OT
Industrial control environments rely on ICS, SCADA, PLCs, HMIs and engineering workstations, but those assets do not tolerate the same authentication model as office IT. Shared credentials, local administrator rights and permanent vendor logins create broad blast radius because one compromised account can reach systems that directly affect uptime and safety. PAM changes the mechanism by vaulting credentials, issuing temporary access and recording activity so the access path is narrower than the production path it protects.
Practical implication: Replace standing OT privilege with task-scoped access and session recording for every privileged change.
How vendor access turns into third-party exposure
OEMs, contractors and system integrators often need rapid remote access for maintenance, but manufacturing sites usually keep that access around longer than the task that justified it. When credentials are shared or reused, the manufacturer loses accountability and the vendor relationship becomes a persistent trust channel into plant systems. Time-bound approvals, hidden credentials and recorded sessions turn third-party access from an open connection into a governed workflow.
Practical implication: Treat every vendor login as time-limited third-party access with approval, expiry and review.
How automation secrets and service accounts widen the machine identity attack surface
Manufacturing automation depends on API keys, tokens, certificates and service accounts that power scripts, CI/CD pipelines and machine-to-machine workflows. If those secrets are hardcoded, reused or rarely rotated, they become quiet but durable access paths that can outlive the workflow that created them. That is an NHI governance issue as much as a secrets issue because the credential, not the script, becomes the control point.
Practical implication: Inventory machine identities, remove hardcoded secrets and rotate access on a defined lifecycle.
Threat narrative
Attacker objective: The attacker aims to disrupt production and expand operational impact by using privileged access as the path into manufacturing systems.
- Entry occurs through a compromised supplier, vendor or admin credential that already has a path into manufacturing IT or OT systems.
- Credential abuse follows when shared passwords, permanent vendor access or exposed service account secrets let the attacker operate as a trusted user.
- Escalation happens as the attacker reaches production-connected systems, disables controls or moves from IT into OT-adjacent assets.
- Impact is operational disruption, including halted lines, delayed shipments, manual recovery and broader business interruption.
Breaches seen in the wild
- BeyondTrust breach 2024: A stolen BeyondTrust Remote Support API key let a China state-sponsored actor reset accounts and reach US Treasury workstations in 2024.
- Stryker Microsoft Intune Wiper Attack: Compromised Microsoft Intune credentials enable wiper attack wiping 200,000 Stryker devices.
Read and download The State of NHI & AI Agent Breach Report 2026, covering 200+ breaches impacting Non-Human Identities including AI Agents.
NHI Mgmt Group analysis
Manufacturing PAM is a production control before it is an access control. The article is right to frame uptime, shipment flow and manual recovery as the real business consequences of privileged access failure. In industrial environments, the security boundary is the process line, not the login screen, which means access governance has to be judged against operational continuity. Practitioners should treat privileged access policy as part of production resilience.
Vendor access without lifecycle offboarding is the most under-governed manufacturing trust path. OEMs and contractors often receive urgent access for maintenance, then keep it longer than the task that justified it. That creates accountability drift because the access outlives the work order and the operator who approved it. The implication is that vendor access must be governed as a lifecycle, not a convenience channel.
Hardcoded secrets in automation workflows are a machine identity governance failure, not just poor secrets hygiene. The article shows that scripts, APIs, tokens and certificates now sit inside operational production paths, which makes them part of the identity plane. Once those credentials are embedded in automation, the plant inherits silent standing access that conventional review processes rarely see. Practitioners need to recognise that the identity subject is the workflow executor, not the script itself.
Endpoint privilege and OT privilege are the same blast-radius problem in different zones. Local admin rights on engineering workstations and permanent access to SCADA or PLC-related systems both widen the path from compromise to operational disruption. The common failure is assuming elevated access is harmless when it sits near a production process. The practical conclusion is that privilege boundaries have to be enforced wherever production logic can be altered.
Session visibility is what makes manufacturing privilege governable. If teams cannot reconstruct who accessed what, when and for what purpose, then audits, incident reviews and vendor accountability all degrade at the same time. Session monitoring does not eliminate risk, but it converts opaque access into evidence. That evidence is the prerequisite for any credible manufacturing PAM programme.
From our research library:
- 97% of NHIs carry excessive privileges, increasing unauthorised access and broadening the attack surface, according to the Ultimate Guide to NHIs.
- Read next: Privileged Access Management Guide
What this signals
Manufacturing teams should read this as a governance problem spanning people, vendors and machine identities. The access model that works for office systems breaks quickly on the plant floor because privilege is tied to uptime, not convenience, and permanent access creates an avoidable blast radius.
Operational privilege boundary: manufacturing programmes need a clearer line between administrative convenience and production authority. Once vendors, endpoints and automation all share the same elevated access patterns, incident containment becomes harder and audit evidence becomes less trustworthy.
For practitioners
- Segment privileged access by environment Separate IT, OT and vendor access paths so administrative rights for one zone do not automatically extend into production-critical systems.
- Enforce time-bound vendor approvals Require approved maintenance windows, hidden credentials and recorded sessions for all OEM, contractor and integrator access, with automatic expiry after the task ends.
- Remove standing local admin rights Replace permanent administrator rights on engineering workstations and operator endpoints with controlled elevation for named tasks and approved applications.
- Inventory and rotate machine secrets Catalog API keys, tokens, certificates and service accounts used by automation, then rotate or revoke anything that remains embedded in scripts or workflows.
- Record privileged sessions for auditability Capture session activity, commands and changes for IT, OT and vendor accounts so incident review and compliance evidence come from one controlled record.
Key takeaways
- Manufacturing risk is not limited to data exposure when privileged access reaches IT and OT systems.
- The strongest failure pattern is standing access across vendors, endpoints and automation secrets that outlives the task that needed it.
- PAM changes the problem by making privileged access time-bound, monitored and auditable across plant operations.
Standards & Framework Alignment
This section maps relevant standards and security frameworks to the operational risks and controls described in this guidance.
OWASP Non-Human Identity Top 10 and MITRE ATT&CK address the attack and risk surface, while NIST SP 800-53 Rev 5 and CIS Controls v8 set the governance and control requirements practitioners need to meet.
| Framework | Control / Reference | Relevance |
|---|---|---|
| OWASP Non-Human Identity Top 10 | NHI-05 — Overprivileged NHI | The article centers on standing machine, vendor and service-account privilege in manufacturing. |
| NHI-07 — Long-Lived Secrets | Shared passwords, hardcoded secrets and persistent access are recurring risks in the guide. | |
| Recommendation — Audit manufacturing machine identities for standing privilege and remove access that exceeds task scope. Rotate long-lived manufacturing credentials and eliminate embedded secrets from scripts and workflows. | ||
| NIST SP 800-53 Rev 5 | IA-5 — Authenticator Management | Credential lifecycle management is central to vaulting, rotation and revocation in the article. |
| Recommendation — Apply IA-5 to enforce credential rotation, storage and revocation for manufacturing privileged accounts. | ||
| CIS Controls v8 | CIS-5 — Account Management | The article focuses on controlling admin, vendor and service accounts across plant environments. |
| Recommendation — Use CIS-5 to inventory, approve and remove unnecessary privileged accounts across IT and OT. | ||
| MITRE ATT&CK | TA0006;TA0008 — Credential Access; Lateral Movement | The threat pattern is compromised privileged access leading into production-connected systems. |
| Recommendation — Map privileged-account exposure to credential access and lateral movement detection in manufacturing. | ||
Key terms
- Privilege Access Management: Privilege Access Management is the discipline of controlling and monitoring elevated access to critical systems and data. It governs how privileged accounts, credentials, sessions, and commands are issued, used, recorded, and revoked, so administrative power is limited, traceable, and aligned to policy, risk, and operational need.
- Machine Identity: The digital identity of a machine, device, or workload, such as a server, container, or VM, used to authenticate it within a network. Sometimes used interchangeably with NHI, though NHI is the broader category.
- Standing Privilege: Standing privilege is access that remains active even when no immediate task requires it. For NHI programmes, it is a common failure mode because long-lived credentials and persistent roles create unnecessary exposure. Reducing standing privilege usually means tighter expiry, on-demand access, and clearer review of who or what still needs access.
- Privileged Session Monitoring: Privileged Session Monitoring is the recording and review of high-risk access sessions after elevation is granted. It gives security teams visibility into commands, queries, and configuration changes, helping them detect misuse, support investigations, and prove that administrative actions were authorised.
Deepen your knowledge
NHI governance, agentic AI identity, and machine identity lifecycle are core topics in our NHI Foundation Level course, the industry's only accredited NHI security programme. If you are building or maturing an IAM programme, it is worth exploring.
Published by the NHIMG editorial team on August 16, 2026.
Updated on October 12, 2026.
NHI Mgmt Group, the independent authority on Non-Human Identity, IAM, and Agentic AI security. nhimg.org