What is a penetration test?

Penetration testing, also known as pen testing, is an authorized attack on a computer system that is done to evaluate the security of the system/network. The test is performed to identify vulnerabilities and the risks they pose. A typical penetration test is a five-stage process that identifies the target systems, their vulnerabilities, and the exploitability of each vulnerability. The goal is to find as many vulnerabilities as possible and report back in a universally acceptable format for the client to understand. Let's look at the different types of penetration testing in the next section.