{"id":3522,"date":"2026-09-26T08:00:00","date_gmt":"2026-09-26T06:00:00","guid":{"rendered":"https:\/\/q-cyber.nl\/?p=3522"},"modified":"2026-10-02T13:28:30","modified_gmt":"2026-10-02T11:28:30","slug":"why-known-vulnerabilities-are-only-part-of-the-security-risk","status":"publish","type":"post","link":"https:\/\/q-cyber.nl\/en\/blog\/why-known-vulnerabilities-are-only-part-of-the-security-risk\/","title":{"rendered":"Why Are Known Vulnerabilities Only Part of the Security Risk?"},"content":{"rendered":"

Every week, dozens of new vulnerabilities appear in software systems. Security teams scan, patch, and report, yet organizations are still getting hacked. How is that possible? The answer has everything to do with a persistent misconception: that known vulnerabilities represent the greatest security risk. In reality, they are merely the tip of a much larger iceberg.<\/p>\n

In this article, we explain step by step what a vulnerability actually is, why known vulnerabilities don’t come close to showing the full risk picture, and which risks organizations structurally overlook. By the end, it will be clear why a different approach to cybersecurity is necessary to truly protect yourself.<\/p>\n

What is a vulnerability and how does it become ‘known’?<\/h2>\n

A vulnerability is a weakness in software, hardware, or a configuration that an attacker can exploit to gain unauthorized access or cause damage. Think of a flaw in a web server’s code that allows an attacker to read files not intended for them.<\/p>\n

Vulnerabilities become ‘known’ through a standardized system: once a researcher or vendor discovers and publishes a vulnerability, it receives a CVE number<\/strong> (Common Vulnerabilities and Exposures). This number makes the vulnerability officially traceable. Security teams, scanners, and vendors can then respond with patches or workarounds.<\/p>\n

The crucial point is that a vulnerability only becomes ‘known’ after someone has discovered, documented, and published it. That process takes time. And during that interim period, the vulnerability already exists \u2014 it just isn’t yet visible to defenders.<\/p>\n

How known vulnerabilities are merely the tip of the iceberg<\/h2>\n

The CVE system is valuable, but it only covers what has already been discovered and published. Beneath it lies a much larger invisible portion, comparable to an iceberg: what you see at the surface is only a fraction of what actually exists.<\/p>\n

Three categories together make up that hidden portion of risk:<\/p>\n