BigONE Suffers $27M Hot Wallet Breach, Vows to Fully Reimburse Users
Crypto exchange BigONE confirmed it was targeted in a $27 million hack on July 16, after attackers exploited vulnerabilities in its hot wallet system. The exchange has pledged to cover all user losses in full.
In a statement, BigONE said it quickly identified suspicious activity and contained the threat. No private keys were compromised, and the incident was attributed to a third-party vulnerability. The platform emphasized that user balances remain unaffected.
Blockchain security firm SlowMist has been brought in to investigate, with stolen assets now being tracked across several major networks, including Bitcoin, Ethereum, Solana, Tron, and BNB Chain.
Assets Lost in the Breach:
- 120 BTC
- 350 ETH
- 9.5 billion SHIB
- 7.1 million USDT (multi-chain)
- 538,000 DOGE
- 1,800 SOL
- 1 WBTC
- 20,730 XIN
- 15.7 million CELR
- 25,487 UNI
- 16,071 LEO
To cover the losses, BigONE will use internal reserves in BTC, ETH, SOL, USDT, and XIN, and borrow additional assets if needed to compensate for illiquid tokens.
While trading and deposits are expected to resume soon, withdrawals remain temporarily suspended as the exchange strengthens security protocols.
“We apologize for the disruption and remain committed to transparency and user protection,” BigONE said. “We will continue to update the community as the investigation progresses.”
This latest breach brings total crypto-related hack losses in 2025 to more than $2.1 billion.
