A practical introduction to ethical hacking and cybersecurity assessment, covering network reconnaissance, Nmap, Wireshark, web application and API security, vulnerability validation, and defensive hardening. Learn how to build a safe practice lab, assess systems within an authorized scope, identify security weaknesses, prioritize risks, and communicate findings through professional reports. Includes guided practical projects, assessment checklists, command references, and a cybersecurity glossary. Imad Muratspahic is an independent author of practical how-to guides, technical handbooks, history and fiction. The books aim to be clear, honest and useful from the first page.