From darkreading.com
Many security professionals today associate the Dark Web with named leaks, which are leaked credentials from employee password reuse. This is still a relevant threat; in the last six years, the Flare platform has counted over 12 billion leaked credentials. The Dark Web is rapidly growing along with the variety of cybercrime. So is the value in monitoring it.
The cybercrime ecosystem now not only includes private communications platforms like I2P and Tor but also reaches across clear websites and Telegram channels.