Classifieds fraud extends far beyond simple buyer-seller disputes, encompassing coordinated schemes that exploit the speed and anonymity of peer-to-peer transactions. <a href=https://npprteam.shop/en/articles/classifieds/fraud-involving-physical-goods-substitutions-fake-receipts-couriers-and-triangles/>https://npprteam.shop/en/articles/classifieds/fraud-involving-physical-goods-substitutions-fake-receipts-couriers-and-triangles/</a> walks through the full taxonomy of physical goods fraud on classifieds platforms, from the moment a buyer places an order through the courier handoff and beyond. Readers will discover how substitution schemes are physically executed, what makes a fake receipt convincing to both platforms and buyers, which courier relationships fraudsters exploit, and how triangle networks compartmentalize liability to avoid detection. Whether you manage a classifieds marketplace, operate a fraud prevention team, or oversee seller protection programs, this material provides the foundational knowledge needed to anticipate, identify, and disrupt these attacks before they damage your platform's reputation or user base.