OSINT Framework is a website with a directory of tools rather than just one single tool. It is perhaps this ability to find all the tools you may need to dig up all the information on a target ...

Nmap (Network Mapper) – A powerful tool for network scanning, host discovery, and port scanning. Recon-ng – A reconnaissance framework for gathering intelligence on a target. theHarvester – Collects ...

As much as 80 per cent of the overall intelligence gathered by various agencies comes from open sources. It's no longer dependent on signals, field agents, and informants.