Toan Hoc 247
Data Breach
toanhoc247.edu.vn175,339
Records Exposed
Apr 2020
Date of Breach
Database
Breach Type
Jul 2025
Added to Database
About This Breach
In April 2020, a Vietnamese online math education platform called Toán Học 247 ("Math 247"), offering structured courses and resources primarily for students preparing for national exams, suffered a data breach that affected 175,339 users. The compromised data included email addresses and password hashes both stored as bcrypt and MD5. While bcrypt is secure, legacy hash formats like MD5 should be fully phased out to avoid undermining overall system security.
Compromised Data Types
Country
Vietnam
Language
Vietnamese
Password Storage
MD5, bcrypt
Category
Education
Indexed On
Jul 29, 2025
Breach Type
Database
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 Toan Hoc 247 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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