BreachForums were a series of online marketplaces that operated on the dark web, accessible only through specialized software such as Tor. These forums allowed users to buy, sell, and trade stolen data, including personal identifiable information (PII), credit card numbers, and login credentials. The marketplaces were created to provide a platform for cybercriminals to monetize their illicit activities, making it easier for them to obtain and trade stolen data.

. Even after Pompompurin's arrest in 2023 on charges of conspiracy to commit computer fraud, the site briefly continued under new management before its eventual seizure by law enforcement agencies in May 2024. Impact on Global Cybersecurity

The story did not end there. Within weeks, a new administrator known as —an alias tied to a notorious threat group responsible for massive data thefts from Microsoft and AT&T—relaunched the forum under the same name, claiming to have a full backup of the original database.

The shutdown of BreachForums has had a significant impact on the cybercrime ecosystem: