Open-source intelligence (OSINT) is widely used in AML/CFT investigations to support customer due diligence, adverse media screening, and financial crime analysis. However, because OSINT sources vary widely in quality and reliability, regulators and investigative best practices emphasize verification and corroboration.

The most effective way to ensure the reliability of open-source information is cross-checking information across multiple independent sources. Corroboration helps confirm accuracy, reduce the risk of misinformation, and identify inconsistencies or bias. This approach is especially important when using online media, public records, blogs, or social media content.

Excluding entire categories of sources—such as the dark web or social media—may result in missed intelligence and does not ensure reliability. Similarly, relying only on international news agencies limits coverage and may overlook relevant local or niche reporting.

Therefore, triangulation through multiple sources is the most effective and regulator-aligned method for validating OSINT.