Enterprises hire ethical hackers to conduct penetration tests in their networks. In these tests, ethical hackers will try to break into a network and exploit its vulnerabilities. By conducting penetration tests, enterprises can be aware of these potential security holes and develop solutions before a malicious hacker can find out about them. This gives you the knowledge on what areas of your system you should invest to improve cyber security and prevent hackers from having a vulnerability to exploit. Penetrations tests will reveal whether security policies implemented by an enterprise are effective or not.”]
Source: https://hackercombat.com/why-penetration-testing-is-important/