AI search engines are facing significant trust issues as GEO black-market companies exploit AI's reliance on "density logic" to manipulate recommendation results. These companies mass-produce false content, such as exaggerated claims by hair care brands, which AI systems cite without verification. This industrialized "credibility fabrication" process involves creating content, distributing it widely, and maintaining consistency to artificially boost a brand's AI trustworthiness. The systemic vulnerability creates a prisoner's dilemma for honest brands, which face lower AI exposure compared to competitors who engage in data fabrication. Consumers are advised to treat AI recommendations as starting points for research rather than definitive judgments. The need for stronger industry governance is urgent to address these manipulative practices and ensure AI systems can better discern credible information.