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NIST Cyber Security Framework – 5 Core Functions Infographic

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Ben Balkin
Updated on: August 26, 2025
NIST Cyber Security Framework – 5 Core Functions Infographic

What are NIST Standards?

Some standards, guidelines, and best practices to meet the industrial, public, and federal agencies’ needs in Cybersecurity are developed by NIST server hardening.  The cybersecurity framework by NIST has an outcome-based approach and this set it to be applied in any sector and on any size of business. There are three basic pillars of the NIST cybersecurity framework, namely;

  1. Framework Core
  2. Profiles
  3. Implementation Tiers

The framework core has five major functions:

  1. Identify
  2. Protect
  3. Detect
  4. Respond
  5. Recover

NIST Cyber Security Framework

How to Harden your System?

The best solution for this challenge is to automate the hardening procedure. A good hardening automation tool should generate an impact analysis report automatically, enforce your policies on your production and maintain your servers’ compliance posture. A hardening automation tool is essential for minimizing the attack surface and achieving compliance at large and complex infrastructures.

Ben Balkin
Ben Balkin is a professional writer and blogger specializing in technology and innovation. As a contributor to the Calcom blog, Ben shares practical insights, useful tips, and engaging articles designed to simplify complex processes and make advanced technological solutions accessible to everyone. His writing style is clear, insightful, and inspiring, reflecting his strong belief in technology's power to enhance quality of life and empower businesses.

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Established in 2001, CalCom is the leading provider of server hardening solutions that help organizations address the rapidly changing security landscape, threats, and regulations. CalCom Hardening Suite (CHS) is a security baseline hardening solution that eliminates outages, reduces operational costs, and ensures a resilient, constantly hardened, and monitored server environment.

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