The use of artificial intelligence (AI) to spread misinformation. It details various tactics used by adversaries, including generating deepfakes, crafting convincing text, employing social media bots, and manipulating content through semantic changes. The text also discusses AI's ability to target individuals based on their behavior and preferences, create a counterfeit consensus, and exploit network vulnerabilities to amplify disinformation. The text concludes by highlighting challenges in combating AI-based disinformation, such as the difficulty of detection and the rapid evolution of AI technology. The author argues that combating AI-based disinformation requires a multifaceted approach involving technology, regulation, and public education.