What Happened to BreachForums

This report provides a chronological history of BreachForums — a dominant English-language cybercrime forum — covering its origins after RaidForums, rapid growth under various administrators, major data breaches and marketplace activity for stolen data and initial access, arrests and law enforcement disruptions, leadership disputes and leaks, and the forum’s eventual fragmentation and collapse; it synthesizes open-source reporting, court documents, and threat actor statements to explain how such underground platforms evolve and are disrupted.