CompTIA Security+: The Most Important Cert in IT Security

What is this page about?

An explainer of what CompTIA Security+ SY0-701 actually certifies (foundational security competence, not specialist expertise) and why it is the most widely held security certification in the world, surpassing 1 million holders in November 2025. It breaks down the current domains by weight, general concepts (12%), threats and mitigations (22%), security architecture (18%), security operations (28%), and program management (20%), covers what changed toward applied operations content, salary by role, the employer types and DoD 8570 rules that require it, and a study schedule.

What has been corrected on this page?

Every accepted correction to this page is recorded with the exact change, so readers can see how the page improved over time.

1. 11 July 2026 · corrected by Melik Can Sariyer

   2 flagged issues verified: a quote attributed to Jason Dion (real CompTIA instructor) had no locatable source and was de-attributed; a headline stat 'over 700,000 people hold it' was checked against CompTIA's own announcements and found stale -- CompTIA announced in November 2025 that Security+ had surpassed 1 million holders worldwide, so the figure was corrected.

   Before

   Security+ is the most widely held security certification in the world, over 700,000 people hold it. That breadth makes it both its strength and its criticism. --- <blockquote> <p>&quot;SY0-701 shifted Security+ from a knowledge exam to an applied exam. The Security Operations domain doesn't ask 'what is an IDS?', it asks 'a SOC analyst sees 50 failed login attempts from one IP followed by a successful login. What should they do?' That's applied incident response knowledge, not definition recall.&quot; - <em>Jason Dion, CompTIA instructor and author</em></p> </blockquote>

   After

   Security+ is the most widely held security certification in the world, CompTIA announced in November 2025 that it had surpassed 1 million holders worldwide. That breadth makes it both its strength and its criticism. --- <p>SY0-701 shifted Security+ from a knowledge exam to an applied exam. The Security Operations domain does not ask &quot;what is an IDS?&quot; It asks something closer to &quot;a SOC analyst sees 50 failed login attempts from one IP followed by a successful login. What should they do?&quot; That is applied incident response knowledge, not definition recall.</p>

   Why: De-attributed an unverified named quote attributed to Jason Dion to plain prose, and corrected a stale certification-holder-count statistic (700,000) to CompTIA official November 2025 figure of 1 million+ holders worldwide.

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