Chess.com Data Breach
Chess.com experienced a data breach that was reported on September 5, 2025. Chess.com Data Breach Affects Thousands of Users
Key Facts
- Organization
- Chess.com
- Date Reported
- September 5, 2025
- Incident Type
- unauthorized access
- Severity Score
- 5/10
- Confidence Level
- medium
- Tags
Source
View original source - External link to primary source documentation
Understanding unauthorized access Incidents
Unauthorized access breaches occur when attackers gain entry to systems without permission through credential theft, vulnerability exploitation, or social engineering.