How a Vulnerable Forum Login Exposed 23,447 FeverClan Accounts

HEROIC analysts identified this breach affecting FeverClan, a gaming community site, originally dated January 1, 2016. The exposed dataset totals 23,447 user records, including IP addresses, email addresses, usernames, and vBulletin-hashed passwords, and it remains in circulation among credential collections used for automated login attacks.

Why This Is Dangerous

This breach happened the way most forum breaches do: attackers found a weakness in the site's backend, likely an unpatched vulnerability in the vBulletin forum software or a compromised administrator login, and used it to pull the entire user database. From there, the data spreads across dark web trading circles, where anyone can pick it up and try the credentials elsewhere.

What Was Exposed

• IP addresses
• Email addresses
• Usernames
• Passwords (vBulletin hash format)

Why This Matters

With email addresses and passwords in hand, attackers run automated credential stuffing tools that test the same login across email providers, gaming platforms, and financial sites. IP address data can also help build a more complete profile of a target for phishing. Anyone who reused their FeverClan password elsewhere is at risk of account takeover, even a decade after the original breach.

How This Database Breach Happened

This incident is classified as a database breach: a direct compromise of the site's backend rather than a phishing attack against individual members. Attackers typically gain this kind of access through SQL injection, an unpatched application flaw, or stolen administrator credentials. Once inside, the full user table is exported, and vBulletin's hashing scheme from this era is well documented and relatively fast to crack with modern tools, which is why this data still holds value for attackers today.

Check If You Are Affected

Don't wait to find out the hard way. HEROIC's free breach scanner checks your email address against a database of more than 400 billion leaked records, including this FeverClan breach, and tells you instantly if you were exposed. Run a free scan now.