23,470
Records Exposed
Aug 2018
Date of Breach
Database,Combolist
Breach Type
Sep 2025
Added to Database
About This Breach
In August 2018, MATARKA, a Hungarian platform that serves as a bibliographic research tool of Hungarian scholarly journals, experienced a data breach involving nearly 33,000 records. The exposed data includes over 23,000 unique email addresses and plaintext passwords. The information was later shared on a prominent hacking forum.
Compromised Data Types
Country
Hungary
Language
Hungarian
Password Storage
Plaintext
Category
Science
Indexed On
Sep 17, 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 MATARKA 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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