Alexander Oni

Absolute Beginner's Guide to Cybersecurity 2026

Learn cybersecurity from the ground up with practical guidance on essential concepts, common threats, ethical hacking, security tools, threat detection, and defensive techniques-designed for complete beginnersKey FeaturesLearn from bestselling instructor Alexander Oni, trusted by 70,000+ students worldwideMaster cybersecurity fundamentals, threats, vulnerabilities, and essential security conceptsExplore practical defense strategies, ethical hacking, security tools, and threat detectionBook DescriptionThe Absolute Beginner's Guide to Cybersecurity 2026 is a comprehensive and practical introduction to cybersecurity for anyone starting from scratch, written in clear, accessible language to help you understand essential concepts without requiring prior technical knowledge. To guide you safely through these fundamentals is bestselling instructor Alexander Oni, who brings over 10 years of online teaching experience and a global community of more than 420,000 students across his 36+ courses.Building on that expert instruction, the book takes you deep into the digital landscape to explore how cyberattacks work, how attackers exploit vulnerabilities, and how individuals and organizations can protect their systems, networks, applications, and data. Along the way, you will learn about common threats, attack techniques, ethical hacking, malware, phishing, social engineering, network security, authentication, encryption, threat detection, security tools, and defensive strategies.Whether you're a complete beginner, an aspiring cybersecurity professional, an IT student, or simply someone who wants to understand today's digital threats, this book provides a structured foundation for building your knowledge and confidence.What you will learnUnderstand essential cybersecurity concepts and terminologyExplore computer networks, protocols, ports, and IP addressesIdentify common threats, malware, phishing, and social engineeringUnderstand how hackers attack systems and networksApply security measures such as firewalls, encryption, and MFASecure networks, devices, accounts, and personal informationProtect mobile devices, apps, and public Wi-Fi connectionsUse practical tools and techniques to improve digital securityWho this book is forThis book is for complete beginners, students, aspiring cybersecurity professionals, IT professionals, developers, and technology enthusiasts who want to build a strong foundation in cybersecurity. No prior cybersecurity experience is required, making it ideal for anyone looking to understand cyber threats, security concepts, and practical defense techniques.