Resources

We’ve filtered through the internet to find the absolute best resources for your future.

CompTIA Exam Objectives (Official): Mandatory. Download this PDF. If it isn’t on this list, it isn’t on the exam.
Professor Messer’s Training Course: The gold standard. His free, concise videos are the best for understanding core concepts without fluff.
Jason Dion’s Practice Exams (Udemy): Widely considered the most accurate representation of the actual exam’s difficulty and question style.
ExamCompass Free Quizzes: Perfect for “drill-down” testing. Use these to master your port numbers, protocols, and definitions quickly.
r/CompTIA Mega-Thread: Visit the “Master Spreadsheet” here. Real students post exactly what they saw on their exam and what they used to pass.

Professor Messer’s Discord: Highly active. A great place to ask specific questions when you’re stuck on a tricky concept.
GitHub: Security+ Cheat Sheets: A collection of community-contributed “Cheat Sheets” for quick memorization of CLI commands and concepts. Use Google to find more (link is to google for sec+)
LinkedIn IT Security Group: Start networking now. Seeing active pros discuss real-world security issues provides the motivation you need.

OWASP Juice Shop: A purposely insecure web app. If you can identify the vulnerabilities here, you’ll crush the application security portion of the exam.
VirtualBox / VMware Workstation: Download this. Build your own home lab to safely practice setting up firewalls and testing network configurations.
Krebs on Security: Read this daily. It helps you understand “Security Operations” in the real world, which makes the textbook concepts click.
Cisco Packet Tracer: Excellent for practicing secure network architectures and protocols.