Hacking involves gaining unauthorized access to a computer system. Penetration testing is performed by ethical hackers using the same hacking techniques as an attacker would use, in order to uncover real and potential security vulnerabilities. In this course we discuss hacking concepts, methods, and penetration testing. An ethical hacker is a person who attacks an organization’s security on behalf of its owners in order to discover vulnerabilities. Instead of taking advantage of these vulnerabilities, the ethical hacker reports them to the organization who can then put in place the appropriate countermeasures to protect themselves against malicious hackers. This course is the first in a series of courses which can used in preparation for the Certified Ethical Hacker 312-50 exam. The course has been developed in partnership with EC-Council and is based on their Ethical Hacking and Countermeasures course materials and labs.