Введение в книгу : This compact book is a strong choice for readers who want to understand cybersecurity, secure systems, and risk-aware technical practice with more structure and confidence. For buyers comparing many titles, this is a sensible choice when they want one organized source instead of scattered online notes. At 204 pages, it is compact enough for focused reading while still giving buyers a useful reference. Published in 2021, it remains a strong choice for readers who want a relevant and dependable learning resource. Ideal for security learners, IT professionals, developers, and technical managers, it helps turn interest into a more serious learning plan and makes a useful addition to a professional bookshelf.