In recent months, many column inches have been dedicated to discussion of both the deep web and the dark web. The dark web usually refers to sites that arent indexed by search engines. Its critical that organizations and security researchers obtain insight into what goes on within dark web, and get alerted right away if there is any information being exchanged or discussed that relates directly to them. The method for doing so resembles that of traditional threat intelligence gathering processes (as it combines both human elements and technology)”]
Source: https://www.csoonline.com/article/3235704/be-afraid-of-the-dark-web-or-learn-to-monitor-it.html