Ciudad Ajedrez
Data Breach
ciudadajedrez.com.mx11,475
Records Exposed
Aug 2018
Date of Breach
Database,Combolist
Breach Type
Oct 2025
Added to Database
About This Breach
In August 2018, Ciudad Ajedrez, an online social platform and resource center for the Mexican chess community, experienced a data breach exposing over 12,000 records. The compromised data included around 11,000 unique email addresses and plaintext passwords. The dataset was later shared on a prominent hacking forum.
Compromised Data Types
Country
Mexico
Language
Spanish
Password Storage
Plaintext
Category
Community, Social Media, Gaming
Indexed On
Oct 7, 2025
Breach Type
Database,Combolist
What Should You Do?
Get Full Breach Details with LeakedSource Pro
Sign up for a LeakedSource Pro account to see exactly what data was exposed in this breach and get real-time notifications when your information appears in new breaches.
Sign Up for Pro- Change your password immediately on Ciudad Ajedrez and any other site where you used the same password. Use a unique, strong password for each account.
- Watch for phishing emails targeting your inbox. Attackers may use your exposed email address to send convincing scam messages.
- Enable two-factor authentication (2FA) on all important accounts to add an extra layer of security.
- Use a password manager to generate and store unique, strong passwords for every account.
Were You Affected by This Breach?
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