Open Source Intelligence (OSINT) is the structured process of gathering, analyzing, and interpreting data that is legally and publicly accessible, with the aim of transforming it into actionable intelligence. This information is sourced from a wide range of platforms including websites, social media, news outlets, public records, forums, and even parts of the deep and dark web. Unlike classified or proprietary intelligence, OSINT relies solely on open data, yet can uncover valuable insights into behaviors, patterns, risks, or opportunities. The ultimate goal is to support informed decision-making in areas such as cybersecurity, due diligence, brand protection, and threat analysis.