Go from competent to expert: advanced offence and defence, AI security, and original research.Applied Cybersecurity: Foundations to Mastery, Volume II takes you to the frontier of professional practice: zero trust and cloud-native defence, secure-programming and forensics at depth, real offensive and defensive technique, AI security and adversarial machine learning, operational-technology and critical-infrastructure security, and the research methods to contribute to the field yourself. It is built for postgraduates, specialists, and practitioners who already have the foundations and want genuine depth.This is the half of the discipline where the stakes are highest and the recipes run out. Every technique is explained in full and anchored in landmark incidents, from the Capital One cloud breach and the XZ Utils supply-chain backdoor to the Equifax and Optus data disasters, the Conti ransomware leak, the Irish health-service attack, the Air Canada chatbot ruling, and Stuxnet, so you learn the craft the way real engagements demand it.What is insideEleven advanced chapters plus a research and capstone track. Zero trust architecture, cloud security, a secure-programming deep dive (including AI-assisted coding), advanced forensics, data and application security, penetration testing and malware analysis, incident response, AI security and adversarial machine learning, and OT and critical-infrastructure security, then research methods and a full capstone companion.Serious, sandboxed labs. Free open-source Docker environments (Wazuh, the ELK stack, crAPI, LocalStack, and more) let you run real attacks and defences safely.Runnable code throughout. Jupyter notebooks for adversarial machine learning, retrieval-augmented-generation exploitation, memory forensics, and detection engineering turn theory into practice.The complete reference set. All four appendices: a consolidated tool reference, a full glossary, a Harvard referencing primer, and a curriculum and learning-outcome map.Who it is for. Postgraduates, specialists, and working professionals ready to operate at depth: red teamers, defenders, cloud and OT engineers, and anyone preparing original research. Volume I is the recommended prerequisite.Deep enough for specialists, current to the frontier, and practical enough to use on Monday morning.