Exchange record
BigONE
Centralized exchange that suffered an approximately USD 27 million supply-chain / hot-wallet breach in July 2025. The exchange said private keys and cold storage remained safe, pledged full user compensation, and described service restoration rather than a terminal shutdown.
Registry sequence
Key facts
URL handling
Summary
Centralized exchange that suffered an approximately USD 27 million supply-chain / hot-wallet breach in July 2025. The exchange said private keys and cold storage remained safe, pledged full user compensation, and described service restoration rather than a terminal shutdown.
Timeline
BigONE confirmed a roughly USD 27 million hot-wallet / supply-chain breach, while stating that private keys and cold storage remained safe and that user balances would be fully covered.
BigONE temporarily suspended deposits while reinforcing system security after the breach, with later updates indicating deposit and trading services were restored.
Reporting described BigONE as temporarily freezing or suspending trading functions after the USD 27 million security incident while working with SlowMist to trace stolen funds.