Cybersecurity Research Group published a detailed report on the volumes of SSL/TLS certificates that available for sale on the dark web. The report highlights the emergence of identity-as-a-service on dark web marketplace. Researchers conducted 16 weekly searches across all 60 websites on the Tor network, 17 webpages on I2P. Listings of SSL certificates found in markets such as Dream Market, Wall Street Market, BlockBooth, Nightmare Market and Galaxy3. The certificates are poorly protected, which allows attackers to abuse them and use it for launching a high-profile attacks.”]
Source: https://gbhackers.com/ssl-tls-certificates-dark-web-markets/