As concerns over AI-generated content grow, researchers are warning about a new wave of fraudulent AI detection tools that falsely label authentic content as machine-generated. Investigations found that several tools, including JustDone AI, TextGuard, and Refinely, incorrectly flagged human-written text, including news reports and literary works, as AI-generated, while prompting users to pay fees to “humanise” the content. Experts say these tools not only produce unreliable results but may also be deliberately designed to monetise misinformation. The misuse of such detectors risks damaging reputations, undermining trust in verification systems, and enabling a growing disinformation tactic known as the “liar’s dividend,” where authentic content is dismissed as fake.