CompTIA Security+ Study Guide by Kai London
This study guide takes you through the knowledge CompTIA Security+ expects, area by area, in clear language — with worked examples, exam tips and practice questions so you can check your progress as you go.
What the book covers
Security concepts
Controls, the CIA triad, zero trust and cryptography basics.
Threats and vulnerabilities
Attacks, threat actors and how vulnerabilities are exploited.
Security architecture
Secure design across on-premises, cloud and hybrid environments.
Security operations
Monitoring, identity, incident response and hardening.
Governance and risk
Policies, risk management, compliance and awareness.
Practice and review
End-of-chapter questions with explanations, plus a final review checklist.
This is an independent study aid. It is not affiliated with, sponsored or endorsed by CompTIA; exam names are trademarks of their owners. Always check the current official exam outline.
Who it is for
Candidates preparing for Security+, IT staff moving into security, and career changers.
About the author
Professor Kai London — CISSP, CISM.
An internationally recognised cybersecurity executive, board advisor and Founder & CEO of Quantum AI Systems Security LLC, writing at the convergence of AI, governance and operational resilience. Honorary Professor and Researcher at UCL.