With the rapid development of artificial intelligence (AI), deepfake technology has increasingly captured public attention. Deepfake utilizes advanced neural networks to swap a person’s face or voice with that of another, creating a synthetic and often startlingly realistic result. While many view this technology as a tool for entertainment or art, the risks underlying its misuse are significant. This article provides a comprehensive overview of deepfake technology, its applications, and both the positive and negative impacts. It will also cover ways to recognize and prevent its abuse and explore the legal and ethical challenges that deepfake technology presents.