Cybersecurity issues are always changing as the digital landscape grows, making creative solutions to protect sensitive data and important assets necessary. With its sophisticated capabilities for threat detection, reaction automation, and wise decision-making, AI has become a powerful tool in the battle against cyber threats. When it comes to cybersecurity, information, and operational technology (OT) security are closely interconnected practices, technologies, and concepts. One of the key aspects of cybersecurity is to offensively conduct penetration tests, also known as ethical hacking and launching cyberattacks such as distributed denial of service (DDoS) attacks, data breaches, or malware deployment to combat adversaries. The integration of AI in cybersecurity plays a critical role. It has the capability to identify risks, vulnerabilities, and irregularities within your network or system. By leveraging AI, you can uncover patterns that indicate a potential breach. Moreover, AI assists in spotting risks, weaknesses, and anomalies, thereby strengthening your network and system security. This chapter delves into the ways in which AI is advancing cybersecurity. It harnesses machine learning, deep learning, and other AI techniques to improve the accuracy of threat detection, automate security operations, and aid security professionals in effectively mitigating and responding to cyber threats.