CompTIA Security+ Exam Prep
Welcome, champion! 🔥
You've mastered 0 of 190 lessons. Start your first lesson free — no signup needed.
About this course
CompTIA Security+ Exam Prep is a guided course for the CompTIA Security+ exam, built on its core domains: general security concepts; threats, vulnerabilities and mitigations; security architecture; security operations; and security program management and oversight. Each lesson is a few minutes of reading cards with diagrams and narration, followed by a quiz, so every term, attack and control is tested on the day you meet it.
Lesson 1 walks through one phishing email that steals a password. It maps each step of the attack to confidentiality, integrity and availability, and names the control that would have stopped it at that step. That habit of linking an attack to the security goal it breaks and the control that blocks it runs through the rest of the course, from cryptography and identity to incident response and governance.
Who this Security+ course is for
It is built for students and freshers with basic networking knowledge, meaning IP addresses, ports and common protocols, who are preparing for Security+. No security background is assumed. It also suits IT support staff who want to understand the security side of the tickets they handle, developers who want a structured grounding in security concepts, and system or network administrators who have picked up security piece by piece. If networking itself is new to you, CCNA 200-301 Exam Prep covers it in depth.
How the course works on Abekus
The course runs as 190 short lessons in 14 topics: security foundations, threats and actors, cryptography, attack techniques, vulnerability management, secure architecture, identity and access, network security, endpoints and mobile, monitoring and response, governance and risk, data and privacy, and security for AI systems. A lesson is a handful of reading cards in plain English, with diagrams where a picture explains more than a paragraph, and narration you can play while you read. Every lesson ends with a quiz, and each question shows an explanation after you answer, so a wrong pick turns into the distinction you were missing. The course and each of its topics open with a short overview of what is coming.
The course explains how attacks and defences work at the level Security+ expects and does not include hands-on tool tutorials such as Kali Linux or Metasploit. Application attacks are one topic here; for web application risks in more depth, Web Application Security: OWASP Top 10 is a separate course.
Security terms the course untangles
Security+ has a large vocabulary, and many questions turn on two terms that sound alike. The final topic sets the most commonly confused pairs side by side:
- Authentication vs authorization
- Hashing vs encryption, and encryption vs encoding
- Audit vs assessment
- Hot vs cold standby
- IDS vs IPS
It also practises choosing a cloud model, an access model, a backup scheme and a hash function, and closes with cases that pull topics together: responding to phishing in a SOC, handling a ransomware event, securing a hybrid network, onboarding a SaaS vendor and reviewing an access request.
Lessons and quizzes vs video courses for Security+
Udemy and Coursera Security+ courses are mostly video lectures, which suit you if you like an instructor talking through each concept. Professor Messer's video series is a widely used way to hear the exam objectives explained one by one. This course does a different job: one idea per lesson, then questions on it straight away, so you find out whether you can tell a replay attack from a man-in-the-middle attack, or pick the right control for a risk, rather than only recognise the words. Watching builds familiarity; answering questions shows what you can actually recall.
Best way to prepare for Security+
Tie every attack to the goal it breaks and the control that stops it, the way lesson 1 does. Take a few lessons a day rather than one long weekly session, read every explanation, including the ones for answers you guessed, and keep your own list of terms you mix up. Give extra time to cryptography and to governance and risk, where many terms sound alike, and return to the comparison lessons in the final topic shortly before your exam.
This is independent exam preparation. Abekus is not affiliated with or endorsed by CompTIA, and the course leaves out exam logistics such as fees and booking; check CompTIA's site for the current exam version and details.