4,445,645
Records Exposed
Dec 2025
Date of Breach
Database
Breach Type
Dec 2025
Added to Database
About This Breach
In December 2025, a dataset was leaked on a Telegram channel. CIAN, a major Russian online real-estate marketplace that connects buyers, renters and sellers through an extensive property-listings platform, suffered a data breach that affected 4.44 million users. The exposed data included phone numbers, full names, and physical addresses.
Compromised Data Types
Country
Russian Federation
Language
Russian
Password Storage
No Passwords
Category
General Business, Real Estate
Indexed On
Dec 12, 2025
Breach Type
Database
What Should You Do?
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Sign Up for Pro- Be alert to smishing attacks (SMS phishing). Scammers may text you pretending to be banks or service providers.
- 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.
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