Yes, many companies hire penetration testers, also commonly referred to as ethical hackers, to assess the security of their systems and networks. These testers are responsible for identifying and exploiting vulnerabilities in the company's infrastructure in order to evaluate its overall security posture. By conducting controlled cyber attacks, penetration testers help companies identify weaknesses and develop strategies to remediate and protect against potential threats. This proactive approach enables organizations to strengthen their security measures and safeguard their sensitive data from potential malicious attacks.