What is NIST?
NIST stands for the National Institute of Standards and Technology — a US government agency widely recognised for developing technical standards, measurements, models and guidelines.
NIST is particularly influential in the areas of Cybersecurity, IT security, industrial automation and risk management.
Although NIST is a US institute, its publications are used worldwide in industry, government, healthcare, OT/ICS environments and critical infrastructure, among other areas.
📘 Important NIST publications
| Publication | Application |
|---|---|
| NIST SP 800-53 | Security controls for governments and industry |
| NIST SP 800-82 | Security of industrial systems (ICS, SCADA) |
| NIST SP 800-61 | Guide to Incident Response |
| NIST Cybersecurity Framework | Framework for risk management and cybersecurity maturity |
| NIST SP 800-171 | Protection of confidential information (CUI) |
🎯 Why is NIST important?
- Provides practical guidance for the security of IT and OT systems
- Recognised by standards such as ISO 27001, IEC 62443 and NIS2
- Forms the basis for Incident Response, risk assessment and SOC design
- Widely used as a reference in manufacturing, pharmaceuticals and energy
🔐 NIST Cybersecurity Framework (CSF)
This framework helps organisations to establish a structured cybersecurity approach, divided into 5 core functions:
- Identify – know your assets, risks and processes
- Protect – implement security measures
- Detect – recognise attacks or anomalous behaviour
- Respond – respond to incidents in a structured way
- Recover – restore systems and learn from the incident
This model is used worldwide as the basis for policy, audits and maturity assessments.
🏭 NIST in OT/industrial environments
NIST SP 800-82 is the reference for OT:
- Describes the security of PLCs, RTUs, SCADA and DCS
- Recommendations for network segmentation, Firewall, IDS and physical security
- Integrates with the Purdue Model and IEC 62443
- Includes threat modelling, impact analysis and risk reduction
✅ Benefits of working with NIST guidelines
- A structured approach to risk management
- Applicable to both IT and OT
- Internationally recognised and compatible with other standards
- Practically applicable in policy, architecture and audits
- Supports compliance with NIS2, ISO and sector-specific regulations
📌 In summary
NIST is a leading institute that is used worldwide as a foundation for Cybersecurity, incident response and OT security. It provides practical, technical and policy guidelines that help organisations become more resilient.