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Websites that require special software such as Tor to access.
The dark web is a small part of the deep web reachable only through anonymising software like Tor. It hosts a mix of legitimate privacy-focused services and illicit marketplaces, and it is a key source for threat intelligence — monitoring for leaked credentials, stolen data, and criminal activity.
Dark-web research demands strong operational security and careful legal and ethical boundaries.
Online content that exists but is not indexed by search engines.
Intelligence about cyber threats used to anticipate and defend against attacks.
An incident in which private data is exposed or stolen, often ending up in public leak databases.
The practice of protecting an investigation and the investigator from exposure.