NIST CSF gets thrown around a lot in job postings and training programs. When I first encountered it, it felt abstract — a lot of governance language that didn’t obviously connect to the hands-on technical work I was doing in the lab. This post is my attempt to make it concrete.
What It Actually Is
The NIST Cybersecurity Framework is a voluntary framework for managing cybersecurity risk. Version 2.0, released in 2024, added a sixth function — Govern — to the original five. It’s not a technical checklist; it’s a structure for thinking about where your security program is and where it needs to go.
The six functions are:
| Function | What it means in practice |
|---|---|
| Govern | Who owns security decisions? What’s the risk tolerance? |
| Identify | What assets do you have? What are the risks? |
| Protect | What controls are in place to reduce risk? |
| Detect | How do you know when something bad is happening? |
| Respond | What’s the plan when an incident occurs? |
| Recover | How do you get back to normal? |
How I Used It in the Aurora Lab
When designing the Aurora AI Security lab, I used the CSF as a design checklist. For each function, I asked: does my lab architecture have something here?
Identify → Asset inventory of all VMs, their roles, and data classification.
Protect → pfSense firewall rules, VLAN segmentation, endpoint hardening.
Detect → Wazuh SIEM with custom rules, file integrity monitoring enabled.
Respond → Documented incident response playbooks (even if it’s just me running the lab).
Recover → VM snapshots as a basic backup/recovery mechanism.
This exercise made the framework click. It stopped being a governance document and became a practical gap analysis tool.
CSF vs. ISO 27001
A question I had early on: what’s the difference between NIST CSF and ISO 27001?
- ISO 27001 is a certification standard. Organizations get audited against it. It’s more prescriptive and compliance-focused.
- NIST CSF is a risk management framework. It’s more flexible and focuses on outcomes rather than specific controls.
In practice, many organizations use both — CSF for strategic risk management, ISO 27001 for certification and third-party assurance.
Applying It in Practice — Panos.ai Internship
When I started my internship at Panos.ai as a Cybersecurity Engineer, NIST CSF stopped being a lab exercise and became a working tool.
One of my main tasks was mapping NIST CSF SP.1300 for small businesses — a NIST publication specifically aimed at organizations that don’t have dedicated security teams. Working through it made clear how much the framework needs to be adapted to context. A 10-person company has different risk tolerance, budget, and capacity than a mid-sized enterprise.
The practical difference: in the Aurora lab, I applied CSF to my own infrastructure where I controlled everything. At Panos.ai, I’m applying it to real client environments with existing tooling, legacy decisions, and business constraints. The gap analysis looks the same on paper — the conversations around it are completely different.
I also worked on EU AI Act (Low Risk) and GDPR requirements in parallel. What’s useful about CSF here is that it doesn’t conflict with either — it sits underneath them as the operational layer while the regulations define the compliance requirements on top.
Further Reading
- The official NIST CSF 2.0 documentation is surprisingly readable — start with the core functions document, not the full framework profile guide.
- CISA publishes CSF implementation guides for specific sectors (healthcare, energy, etc.) which are good for seeing real-world application.
- NIST SP 1300 is worth reading if you’re interested in how CSF scales down to smaller organizations — it’s more concrete than the main framework document.