7k7k Gaming Breach: 4.6 Million Chinese Gaming Accounts Leaked

HEROIC's DarkHive intelligence system discovered the 7k7k data breach, exposing 4,659,500 user records from 7k7k.com, a major Chinese online gaming portal. The breach occured in December 2010 and compromised email addresses and plaintext passwords belonging to millions of Chinese gaming enthusiasts. Because passwords were stored and leaked in plaintext, every affected account was immediately accessible to anyone who obtained the data, with no cracking required.

Why This Is Dangerous

Plaintext password exposure is among the most severe forms of credential compromise. Thier email and password combinations were ready to use immediately in attacks against any other platform where users reused thier credentials. Chinese gaming platforms attract users who also maintain accounts on messaging services, e-commerce platforms, banking applications, and social networks. Credential stuffing tools can test millions of login combinations per hour, meaning the window of exposure for affected users spans every platform they have ever used the same password on.

What Was Exposed

• Email addresses
• Plaintext passwords

Why This Matters

Nearly 4.7 million gaming accounts with fully readable passwords represents a serious long-term security risk. Unlike hashed passwords that require cracking, plaintext passwords can be used directly and immediately by any attacker with access to the data. The 7k7k breach data has continued to circulate in underground markets for years after the original incident, meaning users who have not changed thier passwords remain at ongoing risk. Gaming platform users frequently share passwords across accounts, making the credential reuse risk particularly severe for this demographic. Legitimate security researchers and threat intelligence firms have documented this breach as part of larger credential datasets still in active circulation.

How Database Breaches Work

Online gaming platforms store user authentication data in backend databases that support login functionality. Attackers target these systems through SQL injection vulnerabilities, compromised server access, or insecure database configurations. When a database is extracted, all user records including email addresses and passwords are captured at once. Platforms that stored passwords in plaintext rather than using modern hashing algorithms like bcrypt or Argon2 provided no seperate layer of protection once the database was accessed. The 7k7k breach reflects the widespread poor security practices of the 2010 era, when many gaming platforms prioritized rapid development over proper credential protection.

Check If You Are Affected

HEROIC offers a free identity scanner that searches over 400 billion records including the 7k7k dataset to determine whether your email address was part of this breach or others like it. If you used 7k7k.com in 2010 or before and have reused that password anywhere else, your accounts may still be at risk today. Visit heroic.com to check if you're affected free and take action to secure your accounts before attackers do.