Forbes contributors publish independent expert analyses and insights. I offer insight on cyber security issues for businesses and consumers. This article is more than 10 years old. For the second post ...

Definition: Penetration testing is a process in which a security professional simulates an attack on a network or computer system to evaluate its security—with the permission of that system’s owners.

White hat hackers, sometimes known as ethical hackers, are experts that help businesses find vulnerabilities in their applications, systems and networks. Jennifer Zaino is a New York-based freelance ...