Chess.com file transfer app breach exposes 4,500 people's data
Chess.com suffered a data breach via a file transfer app in June 2025. Chess.com disclosed that the information of 4,500 people was stolen in the incident.
Key facts
- Affected organisation
- Chess.com
- Incident type
- Data breach
- Occurred / detected
- Not confirmed
- Scale of damage
- Information of 4,500 people
- Cause / method
- Data breach via a file transfer app
- Location
- United States
If your data was exposed
- Don’t tap links in texts, calls or emails that mention this incident and offer compensation, refunds or breach checks. Check directly on the organisation’s official website or app.
Timeline
- Chess.com disclosed that the information of 4,500 people was stolen in a June breach involving a file transfer app.
3 related reports
Other incidents at Chess.com
Profile information of 7.3 million Chess.com users leaked
7.3mImpact: Profile information of 7.3 million users
Profile information of 7.3 million Chess.com users was leaked. Indications that scraping was the cause were presented, and the time of the incident and the response have not been confirmed.
Related reports: 3 →800,000 user records scraped from Chess.com leaked
800kImpact: 800,000 user records
A hacker leaked 800,000 user records collected from Chess.com through scraping. The specific data fields leaked and Chess.com's response have not been confirmed.
Related reports: 2 · last report →
The summary and key facts are written by AI from related reports and may contain errors. Check the original articles and the organisation’s official statements for accurate details.