Every year, healthcare is becoming digitalized. Smart devices and Web-based systems are now employed to gather, store, and share patient information in hospitals. These tools simplify and speed up the process of treatment, yet they lead to the emergence of new risks. Cyberattacks, theft of data, and system failure can be detrimental to both the patients and the healthcare providers. In this paper, we will review the way Artificial Intelligence (AI) can be used to protect the healthcare system against such issues. It describes how AI can detect and prevent attacks, secure medical equipment, and ensure patient data is secure. The paper also examines how AI can analyze previous attacks and forecast future attacks in order to prevent them. Certain challenges such as the need for powerful rules, ethical issues, and data privacy are also addressed. The paper demonstrates that AI can be used to ensure safe and more reliable healthcare, as long as it is utilized reasonably and conscientiously.