Carding Mafia Forum Breached Twice, Exposing Nearly 600,000 Criminal Marketplace Accounts
The cybercrime forum Carding Mafia, which was used for the theft and trading of stolen credit cards, suffered two separate data breaches in 2021 that together exposed records tied to nearly 600,000 member accounts. One breach in March 2021 affected nearly 300,000 members, while a second breach in December 2021 exposed more than 300,000 more, showing repeated compromise of the same criminal platform within nine months.
Across the two incidents, the leaked data included email addresses, usernames, IP addresses, and passwords hashed with salted MD5. Both breaches were classified as sensitive and were not made publicly searchable by Have I Been Pwned, but the disclosures highlight that even illicit forums can become sources of credential exposure, infrastructure intelligence, and attribution data for defenders and investigators.
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How this story unfolded
2 events from the most recent confirmed update back to the earliest known activity.
Second Carding Mafia breach exposes more than 300,000 members
In December 2021, Carding Mafia experienced another data breach roughly nine months after the earlier incident. This breach exposed more than 300,000 members' email addresses, usernames, IP addresses, and salted MD5 password hashes.
Carding Mafia forum breached, exposing nearly 300,000 members
In March 2021, the Carding Mafia cybercrime forum suffered a data breach affecting nearly 300,000 members. Exposed data included email addresses, usernames, IP addresses, and passwords stored as salted MD5 hashes.
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