Complete, exam-focused prep for EC-Council's Certified Ethical Hacker v13 (exam 312-50). Covers all 20 CEH modules across five domains: footprinting/reconnaissance, scanning and enumeration, and vulnerability analysis; system hacking, malware, sniffing, and social engineering; denial-of-service, session hijacking, and evading IDS/firewalls/honeypots; hacking web servers and applications, SQL injection, wireless, and mobile; and cloud, IoT/OT, and cryptography. Includes concept tables, exam-trap callouts, the real-world tools (Nmap, Wireshark, Metasploit, Burp Suite, sqlmap, Aircrack-ng, Hashcat), per-domain mastery checks, a full-length 50-question mock at blueprint weighting, and a spaced-repetition flashcard deck. CEH v13 is 125 multiple-choice questions in 4 hours with an ANSI-scaled passing score (~60-85%). For authorized, ethical use only.