Internet Security: The Complete Manual — 28th Edition (2026)

Online security is not just about spotting a virus. This edition of Internet Security: The Complete Manual examines the everyday risks that can affect computers, home networks, personal information and online accounts—and explains practical ways to reduce exposure to them.

Its accessible, tutorial-led approach takes readers from recognizing common threats to strengthening device and account security. The focus is on useful consumer guidance, not technical theory for its own sake.

Recognize the threats behind the headlines

The opening material explains a range of security risks, including viruses, ransomware, Trojan programs, spyware, social engineering, phishing, vishing, smishing and pharming. Understanding how these threats work can make suspicious messages, downloads and online activity easier to assess.

Strengthen your devices and home network

Guidance covers Windows security, keeping software updated, securing a web browser and protecting a home network and wireless connection. The manual also introduces encryption and VPNs, with sections on using these tools for added security.

Protect accounts, passwords and online activity

Later chapters turn to practical habits: creating stronger passwords, using password managers, shopping online more carefully and securing social-media accounts. The contents also address how internet data travels and how it may be intercepted.

Compare tools and find a starting point

Alongside explanatory tutorials, the manual includes comparison-style features on antivirus and security packages, encryption tools, VPNs and password managers. A troubleshooting section covers removing a virus or malware from a PC.

A clear reference for everyday internet users

This edition is suited to readers looking for approachable explanations of common online threats and practical steps for improving personal and device security. Its broad coverage makes it useful as a starting point or a reference to revisit when a particular concern arises.