Overview
This policy establishes the mandatory information security requirements for the deployment, operation, monitoring, and retirement of Internet of Things (IoT) and Operational Technology (OT) systems within the organization.
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Secure Critical Infrastructure: Protect IoT/OT systems that interface with physical infrastructure, production processes, and safety-critical environments.
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Prevent IT-OT Bridge Attacks: Ensure IoT/OT platforms do not become attack vectors that compromise corporate IT or safety-critical systems.
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Enforce Security-by-Design: Apply security-by-design and defense-in-depth principles across the entire lifecycle of IoT and OT technologies.
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Align with Global & Sectoral Standards: Ensure all deployments align with ISO 27001:2022 and applicable sectoral guidance like IEC 62443 and NIST SP 800-82.
Read Full Overview
The IoT-OT Security Policy is a comprehensive framework designed to secure the deployment, operation, and retirement of Internet of Things (IoT) and Operational Technology (OT) systems. It integrates these technologies into the broader cybersecurity management system, ensuring protection against compromise, misuse, or operational sabotage. This policy is essential for organizations seeking to align their IoT and OT infrastructure with international security standards like ISO/IEC 27001:2022, IEC 62443, and NIST SP 800-82. By applying security-by-design and defense-in-depth principles, it addresses various threats such as denial-of-service attacks, unauthorized access, and ransomware propagation. The policy's scope is extensive, covering all IoT and OT systems, whether company-owned or third-party provided, across operational, administrative, or production environments. This includes a range of devices from environmental sensors to complex industrial control networks. It mandates strong technical, organizational, and procedural controls to protect systems interfacing with physical infrastructure and safety-critical environments. A key feature of this policy is its emphasis on roles and responsibilities, ensuring clarity and accountability. The Chief Information Security Officer (CISO) defines cybersecurity standards, while OT engineers and IT administrators enforce policy adherence. Procurement teams are responsible for cybersecurity specifications in vendor agreements, ensuring comprehensive security measures are in place. The policy also outlines governance requirements, including device security configurations, network segmentation, patch management, and the use of approved hardware and protocols. It emphasizes the need for continuous monitoring and threat detection, using advanced tools like ICS/SCADA-aware detection systems and SIEM rule sets to safeguard the network. One of the policy’s most reassuring aspects is its structured approach to compliance and enforcement. By periodically conducting audits and technical reviews, organizations can ensure ongoing adherence to the policy, mitigating risks and enhancing security posture. In a world where the threat landscape is continuously evolving, this policy offers a clear, structured path to securing IoT and OT systems, providing stakeholders with confidence and peace of mind.
What’s Inside
Device Security Configuration: Prohibition of default passwords and requirements for secure boot and signed firmware.
Network Segmentation and Isolation: Mandates for dedicated OT networks and isolated VLANs/DMZs for IoT devices.
Patch and Firmware Management: Rules for vetting, verifying, and applying security patches with defined SLAs.
Monitoring and Threat Detection: Requirements for continuous monitoring with ICS/SCADA-aware tools and OT-specific SIEM rules.
Secure Procurement: Mandates for validating cybersecurity specifications in all IoT/OT vendor agreements.
Roles and Responsibilities: Clear duties for CISO, OT Engineers, IT Admins, and Procurement teams.
Built for Leaders, By Leaders
This policy isn't just a template; it's an audit-defensible document crafted by seasoned cybersecurity leaders. Every clause is designed for practical implementation within complex enterprise environments, ensuring you can meet auditor requirements without disrupting operational workflows.
Framework Compliance
🛡️ Supported Standards & Frameworks
This product is aligned with the following compliance frameworks, with detailed clause and control mappings.
| Framework | Covered Clauses / Controls |
|---|---|
| ISO/IEC 27001:2022 | Clause 8.1 |
| ISO/IEC 27002:2022 | Controls 5.75.235.275.315.36 |
| NIST SP 800-53 Rev.5 | SC-7SI-4CM-2AC-6PL-8 |
| EU GDPR | Articles 52532 |
| EU NIS2 | Articles 2123 |
| EU DORA | Articles 910 |
| COBIT 2019 | DSS05.01BAI09.01APO13.02 |
Part of a Complete ISMS Toolkit
This policy is one of 37 documents in our complete toolkit, designed for comprehensive compliance.
100%
ISO 27001:2022
95%
NIST
88%
NIS2
75%
DORA
70%
GDPR
Related Policies
P6 - Risk Management Policy
Guides the assessment, acceptance, and mitigation of risks related to embedded and control systems.
P12 - Asset Management Policy
Ensures all IoT and OT systems are formally inventoried and assigned responsible owners.
P20 - Endpoint Protection / Malware Policy
Applies to connected controllers, smart gateways, and edge systems in production.
P30 - Incident Response Policy
Directly governs how IoT/OT breaches, anomalies, or system failures must be escalated and managed.
About This Policy
The Clarysec IoT/OT Security Policy establishes mandatory information security requirements for the entire lifecycle of Internet of Things (IoT) and Operational Technology (OT) systems. Its purpose is to integrate these critical systems into the organization's cybersecurity framework, protecting them from compromise, misuse, and operational sabotage. This policy enforces strong controls to secure physical infrastructure and safety-critical environments in alignment with standards like ISO 27001:2022 and IEC 62443.
This policy applies to all IoT and OT systems, from environmental sensors and access controls to industrial control systems (ICS) like SCADA and PLCs. It governs all stakeholders, including internal teams and third-party vendors, across all deployment environments. By mandating network segmentation, secure device configurations, continuous monitoring, and security-by-design principles, the policy provides a robust and defensible strategy for managing the unique risks of converged IT/OT environments.
