LeakBase Admin Arrested in Russia Over Massive Stolen Credential Marketplace

By Ravie Lakshmanan | March 25, 2026

Russian authorities have arrested an administrator of LeakBase, a major dark web marketplace that specialized in trafficking stolen credentials and personal data. The arrest marks a significant development in international cybercrime enforcement efforts targeting large-scale data breach operations.

LeakBase operated as one of the prominent underground marketplaces where cybercriminals could purchase and sell massive databases of compromised user credentials, often sourced from major data breaches affecting millions of users worldwide.

The marketplace served as a hub for cybercriminals seeking to monetize stolen personal information, including usernames, passwords, email addresses, and other sensitive data typically obtained through various cyber attacks and data breaches.

This arrest represents part of ongoing international efforts to combat cybercrime operations that profit from the sale of stolen personal information and compromised credentials.