How Networks Work
Network types and topologies, MAC and IP addresses, components and failure points, protocols, and the cloud.
Cybersecurity (First Edition): Welcome!
Cybersecurity: Protecting Your Digital World (First Edition) 🛡️
Section titled “Cybersecurity: Protecting Your Digital World (First Edition) 🛡️”Every message, photo, and assignment you create travels across networks and lives on computers you will never see. In this book, you’ll learn how those systems really work and how defenders protect them: how networks are built and addressed, how data and identity are secured, who the attackers are and where the ethical line sits, how AI is changing both attack and defense, and how layered defenses and good digital citizenship keep whole communities safe.
What You’ll Learn
Section titled “What You’ll Learn”Securing Data and Identity
The CIA triad, data in three states, authentication and authorization, passkeys, and encryption in a quantum world.
Threats, Attackers, and Ethics
Threat actors, vulnerabilities and patching, network attacks, ethical hacking, and cyber laws and agreements.
AI, Agents, and New Threats
How AI agents work, AI-powered scams, prompt injection, deepfakes, shadow AI, and automated defense.
Defense in Depth and Digital Citizenship
Layered defenses, physical security, supply chains, your digital footprint and PII, and preventing cyberbullying.
Ready to Start?
Section titled “Ready to Start?”👉 Chapter 1: How Networks Work 👉 Chapter 2: Securing Data and Identity 👉 Chapter 3: Threats, Attackers, and Ethics 👉 Chapter 4: AI, Agents, and New Threats 👉 Chapter 5: Defense in Depth and Digital Citizenship