In today’s digital world, cyberattacks are becoming more complex and harder to stop with traditional security methods. This is where artificial intelligence (AI) steps in, offering new ways to protect against these ever-evolving threats. AI can scan massive amounts of data, spot unusual patterns, and respond to attacks almost instantly—things that would take humans much longer to do. While AI is proving to be a powerful tool in cyber security, it also brings new risks, like the possibility of hackers using AI to launch smarter attacks and the ethical concerns around privacy. This chapter explores how AI is changing the cyber security landscape, the benefits it provides, and the challenges people may face as they rely more on this technology.