This is a self-paced course that continues the development of ethical hacking skills. The curriculum provides an introduction to the exploitation phase of penetration testing topics. Among the topics covered are foundations of explorations, application debugging, reverse engineering, exploitation development, and web application exploitation. In this class, students learn the third phase of penetration testing; exploitation. In the exploitation phase, the penetration testers try to exploit security weaknesses actively. Exploits are developed to, for example, gather sensitive information or to enable the ethical hacker to compromise a system and manifest themselves on it. Once a device is successfully compromised, it is quite often possible to penetrate more systems because the malicious users now have access to more potential targets that were not available before. The additional marks are accessible because the compromised system can interact with internal devices that are not accessible from the Internet. For any new targets, the reconnaissance and enumeration phases are re-entered, to gather information about these new systems and exploit them.