Penetration testing, or "Ethical Hacking", is the practice of testing systems, environments, and even employees in the manner of a real-world hacker. As news of security breaches and wide-spread hacks increase, companies are increasingly pursuing penetration testing services. This talk will discuss what penetration testing is and different approaches that vendors bring to it, why penetration testing is so important to a security program, and how penetration tests are implemented to simulate real-world attacks.