The dark web is a part of the internet that is not indexed by search engines and requires specific software, configurations, or authorization to access. It is often associated with illegal activities, such as the buying and selling of drugs, weapons, and stolen data, as well as human trafficking and other illicit activities. The dark web provides a level of anonymity for users, making it difficult for law enforcement to track criminal activity. However, it is also used by journalists, whistleblowers, and activists who require privacy and protection from government surveillance. Research in this area explores the structure, content, and behavior of the dark web, as well as strategies for navigating and monitoring this hidden part of the internet.