This document will increase your knowledge and add 16 amazing investigation tools, leading you deeper into the dark and quite often secret cave, of online investigations.
As I’m sure you know, Open Source Intelligence (OSINT) is the application of utilizing data that is publicly available, to achieve your aim.
Open source may give the impression of publicly available information only. OSINT could also utilize human intelligence (such as social engineering). But, there are many methods of gathering and sifting this intelligence, not all, but most, including using computer systems.