From Verification to Amplification: Auditing Reverse Image Search as Algorithmic Gatekeeping in Visual Misinformation Fact-checking

Collection of recent CS/SI arXiv papers highlighting two acute security/privacy risks and several research advances. A systematic audit of Google Reverse Image Search (RIS) shows RIS often surfaces irrelevant or repeated misinformation and that debunking content comprises <30% of results, with an inverted U-shaped quality curve that can create early “data voids” when visual falsehoods first appear—implicating RIS as an algorithmic gatekeeper that can amplify visual misinformation. A longitudinal reverse-engineering study of Meta Pixel configurations (PixelConfig) shows widespread default-based