All chapters

Chapter 5

The dark web is a marketplace — and your data is listed

The credential economy is vast, organised, and efficient. Understanding where data flows explains why continuous, broad monitoring is the effective countermeasure.

  • Stealer log markets

    Venues sell complete “logs” from infected machines — every credential, cookie, autofill entry, and system fingerprint. High-value corporate VPN access can sell for hundreds of dollars.

  • Combo lists & dumps

    Bulk username-password pairs sold by the million feed credential-stuffing. Even a tiny valid fraction across millions of rows means thousands of working logins.

  • Initial access brokers

    Actors with footholds sell access to ransomware groups. Much of that supply chain starts with infostealer output.

  • Private Telegram channels

    Stealer groups distribute fresh logs to large subscriber bases, sometimes minutes after exfiltration.