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online footprint
The total trail of data a person or organisation leaves across the internet.
A digital footprint is everything discoverable about a subject online — accounts, posts, photos, registrations, public records, and leaked data. Mapping a footprint is the goal of much OSINT; reducing your own is the goal of privacy self-defence.
Footprints grow through reused identifiers, published metadata, and cross-links between personas. Understanding how they accumulate is the key both to investigating others and to protecting yourself.
Systematically mapping the online presence and infrastructure of a target.
Moving from one piece of information to the next until a single clue becomes a full picture.
The practice of protecting an investigation and the investigator from exposure.
Publishing someone's private information online, usually to harass or intimidate.