CompTIA Security+ Prep 2026

Passy Prep

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About this app

Prepare for CompTIA Security+ by understanding how security concepts apply to a scenario. Passy combines practice questions, clear explanations and AI Rescue to help you work through threats, controls and the reasoning behind your answers.

Work through the difference between similar controls, threats and responses, then use focused review to revisit what needs more attention.

Connect security concepts with decisions
Review security fundamentals, threats and vulnerabilities, security architecture, security operations, and risk and governance concepts. Practice choosing an appropriate control or response based on the information in a question.

Get help when a question doesn't click
AI Rescue offers help based on your answer:
• After an incorrect answer, tap "Why was I wrong?" for an explanation focused on your chosen answer.
• After a correct answer, tap "Challenge Me" for a similar question that checks your understanding.

Use additional guidance to understand why a plausible control is not the best match for the situation described.

Know what to review next
Check your practice accuracy by subject to see where to focus your next session. Fix It keeps missed questions available for review, helping you distinguish between recognizing an acronym and understanding how the concept is used.

Make study time work for you
• Subject practice: spend time on a specific security knowledge area.
• Timed mock exams: practice reading scenarios and managing your pace.
• Flashcards and Boost: revisit terminology, key distinctions and study tips.
• Cram: focus your review as your exam approaches.

Keep learning with Passy Premium
Give your preparation a cycle of practice, explanation and review. Premium unlocks the full question bank and study tools in this app, including AI Rescue, mock exams, Fix It, flashcards, Boost and Cram, helping you follow up on the concepts behind your answers.

Explore a limited free preview. Full access requires a Premium subscription; available plans and prices are shown in the app.

Start your next Security+ study session with a concept you want to understand.

Passy is an independent study app and is not affiliated with or endorsed by CompTIA. Question practice complements hands-on training; it does not replace it.

What’s new

Passy for CompTIA Security+ includes:
- Security questions with explanations of threats, controls and risk concepts.
- AI Rescue: an explanation after a missed answer, or a similar question after a correct one.
- Subject accuracy and Fix It to focus on challenging topics.
- Timed practice and flashcards for security terminology.