Black Markets are places on the web where it is possible to acquire or rent malicious services and products. These markets are growing fast and are becoming very popular in the criminal underground. Among the most commercialized products offered in the black markets there is users personal information. Trendmicro has published an online calculator to estimate its value for cyber criminals. The world of hacking can be seen as a market: Buyers seek the best price; sellers ply their wares to make the most profit.”]
Source: https://securityaffairs.co/wordpress/37625/cyber-crime/hackers-black-market.html