Using a computer, we communicate with people, obtain the necessary information, conduct business correspondence, store financial and personal information - we trust the computer with what we would like to limit access to. At the same time, today they only talk about virus epidemics, hacker attacks, and theft of personal data. And you must be able to protect your data. After reading this book and watching the accompanying video course, you will learn about the techniques used by hackers, virus writers and network scammers, learn how to protect yourself from viruses and other malware, recognize and repel hacker attacks, and the tricks of Internet scammers , protect against spam, control access to those resources that your child should not visit. The book will tell you, and the video course will show you how to hide valuable information from prying eyes, select passwords, and recover lost information. On the disk included with the book, in addition to the video course, you will find programs that will help reliably protect your computer.