Security

CISSP

The DAD Triad: Understanding the Antithesis of CIA in Information Security

In the world of cybersecurity, the CIA Triad — Confidentiality, Integrity, and Availability — forms the backbone of information protection. Security professionals design systems to uphold these principles and prevent breaches. But what happens when these pillars are attacked or neglected? That’s where the DAD Triad comes in. The DAD Triad is not a security […]

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CISSP

Availability in Information Security: Keeping Systems and Data Accessible When It Matters Most

In the modern digital landscape, availability is no longer a luxury — it’s an expectation. Whether it’s online banking, healthcare services, or critical government systems, users demand that services are accessible when they need them. Availability is the third component of the CIA Triad in information security, alongside confidentiality and integrity. While confidentiality protects against

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CISSP

Integrity in Information Security: Protecting the Accuracy and Trustworthiness of Data

When discussing cybersecurity, confidentiality often grabs the most attention. However, integrity is just as critical — and sometimes even more so. Integrity is the assurance that information remains accurate, reliable, and unaltered unless changed by authorized individuals through approved processes. Imagine trusting a medical diagnosis, a financial transaction, or a government database, only to find

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CISSP

Confidentiality in Information Security: Why Protecting Sensitive Data is Paramount

In the vast field of cybersecurity, confidentiality stands as one of its most vital pillars. Represented as the “C” in the CIA Triad (Confidentiality, Integrity, Availability), confidentiality ensures that sensitive information is accessible only to those authorized to view it. In a world increasingly driven by data—whether it’s personal health records, financial statements, or corporate

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CISSP

Understanding the CIA Triad: The Foundation of Information Security

Understanding the CIA Triad When discussing information security, the first concept that comes up in any professional or academic conversation is the CIA Triad — a simple but powerful model that serves as the bedrock of all security practices. CIA, in this context, does not stand for a government agency. Instead, it represents Confidentiality, Integrity,

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Security

Security: The Bridge Between Technology and Business – A 360° Perspective

In the digital era, security is no longer a standalone technical function. It’s an integral part of the business ecosystem, directly influencing brand reputation, customer trust, regulatory compliance, and operational continuity. Unfortunately, many organizations fall into two extremes: they either treat security as a roadblock to business agility or assume it’s the sole responsibility of

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Linux, Security

Mastering firewall-cmd: The Complete Guide to firewalld in Linux

Now that we have covered IPtables and UFW, let’s dive into firewalld. 📚 Table of Contents 1. What is firewalld? firewalld is a dynamic firewall daemon that manages rules using zones and services instead of raw chains and rules like iptables. firewall-cmd is the command-line frontend to interact with firewalld. 2. Why Use firewalld Over

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