What Is OSINT?

OSINT is a discipline with roots in military and journalistic practice, now central to verification work of every kind: journalists confirming an account belongs to who it claims, fraud investigators mapping a scammer's personas, and ordinary people checking a date or a seller. The defining line is the source: open means public — anything behind a login you don't own, or obtained by deception or intrusion, leaves OSINT territory.

The craft is less about tools than about method: form the question, collect across many public surfaces, and weigh corroboration. One profile proves little; the same handle, photo and biography details agreeing across several independent platforms is evidence. Tools that automate the collection — username scanners, breach checkers — speed up the collecting; judgment stays human.