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Cybersecurity Glossary

What is NIST CSF (NIST Cybersecurity Framework)?

The NIST Cybersecurity Framework (NIST CSF) is a voluntary, risk-based framework developed by the National Institute of Standards and Technology. It organizes cybersecurity activities into six core functions (Govern, Identify, Protect, Detect, Respond, Recover) and gives organizations a common language and roadmap for managing risk.

Blocks 99% of password attacks
Required by most cyber insurance
Core to SOC 2, HIPAA, PCI
How It Works

How NIST CSF works

Three-step view of how it operates in practice.

1

Profile current state

Map existing controls against the 6 functions and 23 categories. Identify gaps against desired maturity.

2

Set target profile

Define the desired state based on business risk, regulatory context, and industry peers.

3

Close gaps iteratively

Prioritize gap closure by risk impact. Re-profile annually or after major changes.

NIST CSF Variants

The 6 core functions (NIST CSF 2.0)

A clear breakdown of the common variants.

Function

Govern

Establish cybersecurity risk management strategy, policy, and oversight.

Most common

Identify

Time-based one-time codes from an app like Microsoft Authenticator or Google Authenticator. Offline-capable and phishing-resistant against many attacks.

Convenient

Protect

The user approves a sign-in with a tap on their phone. Easy to use but vulnerable to MFA fatigue attacks — always pair with number matching.

Strongest

Detect, Respond, Recover

FIDO2 keys like YubiKey, or device-bound passkeys. Phishing-resistant by design — the key will not authenticate against a fake domain.

Why It Matters

Why NIST CSF matters for SMBs

The NIST Cybersecurity Framework (NIST CSF) is a voluntary, risk-based framework developed by the National Institute of Standards and Technology.

58%
of US organizations align their cybersecurity program to NIST CSF as the primary framework
Source: NIST Cybersecurity Framework 2.0 Industry Survey, 2024
Pitfalls

Common NIST CSF mistakes

  • Treating CSF as a checklistCSF is a framework, not a control list. Mapping to specific controls (CIS, NIST 800-53, ISO 27001) fills that gap.
  • Skipping the Govern functionAdmins, finance, and anyone with access to money or sensitive data should use an app or hardware key — never SMS alone.
  • No risk contextSame controls for everyone doesn’t work. CSF profiles should be tailored to actual business risk.
  • Not updating after major changeM&A, new products, regulatory changes, and incidents all shift your risk profile. Annual reprofiling is the minimum.
Common Questions

NIST CSF frequently asked questions

Voluntary, but federal contractors, critical infrastructure operators, and many regulated industries are expected to align. Cyber insurers also increasingly ask about CSF alignment.
CSF 2.0 (Feb 2024) added the Govern function, expanded supply chain risk management, and clarified guidance for all organization sizes.
CSF is a strategic framework; ISO 27001 is a detailed control standard with formal certification. They complement each other.
Initial profiling: 2-3 months. Reaching a target maturity across all functions is typically a multi-year program.
Have a documented recovery process before it happens. Typically an administrator verifies the user's identity through an out-of-band channel, temporarily disables MFA, and re-enrolls the user with a new device. Backup codes or a secondary security key reduce downtime.
Related Services

LogicalNet services related to MFA

Identity & Access Protection Primary

MFA enforcement, conditional access, least privilege, and identity monitoring.

Email Security

Phishing defense, account-takeover monitoring, and secure email gateways.
Related Terms

Related glossary terms

SOC 2

Policies that adapt to device, location, and risk signals.

CMMC

A security model that verifies every request as if it came from an open network.

HIPAA

Give users only the access they need — nothing more.

Cyber Insurance

FIDO2 keys and passkeys that cannot be proxied or replayed.
Identity & Access

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