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Sead Fadilpašić

Not quite checkmate yet - thousands of Chess.com fans may have had details stolen in cyberattack, here's what we know

Chess.com.
  • Chess.com discloses June 2025 cyberattack which exposed data of 4,541 users
  • Hackers exploited a vulnerable third-party file transfer tool; core systems weren’t breached
  • No logins or payment data were stolen; victims get free identity theft and credit monitoring

Chess.com, the biggest and most popular chess game online platform, has confirmed suffering a cyberattack in which it lost sensitive information on a small fragment of its user base.

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