Dictionary · Hacking Techniques and Methodologies

Intelligence gathered from publicly available sources, such as websites, filings, and name records. Public does not always mean it was wise to publish.

Defenders collect it about their own organization to see what an outsider could learn. The fix is often to remove an old document or a forgotten host name.

Example: A review finds a public résumé that names an internal project and a test-server host. The host is retired and the document is updated.