A Data Leak Site (DLS) is a hidden website, often on the dark web, where cybercriminal groups publish stolen sensitive data from organizations or individuals. These sites serve as a tool for extortion, pressuring victims to pay ransoms by threatening to release confidential information publicly. DLSs are commonly used by ransomware gangs to showcase their breaches, intimidate future targets, and demonstrate their capabilities. The information posted can include personal records, business documents, or proprietary data, posing significant risks to privacy and security.