This course provides an in-depth understanding of session hijacking techniques, which occur when an attacker gains unauthorized access to a valid session between two parties, typically between a user and a web application. Participants will learn how attackers exploit session tokens and vulnerabilities, and the various methods used to hijack or manipulate active sessions, such as session fixation, cookie theft, and man-in-the-middle attacks. The course will also cover strategies to secure web applications against session hijacking, including encryption, secure cookie attributes, token-based authentication systems, and multi-factor authentication. Through hands-on labs and real-world examples, learners will gain the skills needed to defend against and mitigate the risks associated with session hijacking.