BigONE Hacked for $27M in Hot Wallet Exploit, Exchange Promises Full User Reimbursement
Crypto exchange BigONE has reported a $27 million loss following a hot wallet hack on July 16. The platform has pledged to fully reimburse all affected users and has launched a formal investigation into the incident.
In an update to users, BigONE confirmed the breach stemmed from a third-party vulnerability that allowed attackers to siphon assets from its hot wallet. The threat has been contained, and no private keys were compromised during the attack.
Blockchain security firm SlowMist is assisting BigONE in tracking the stolen funds, which span major blockchains including Bitcoin, Ethereum, Tron, Solana, and BNB Chain.
Summary of Stolen Assets:
- 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 reserves held in BTC, ETH, SOL, USDT, and XIN. For less liquid tokens, the exchange said it may resort to short-term borrowing to fully restore user balances.
While deposits and trading are expected to resume shortly, withdrawals will remain temporarily suspended as security upgrades are implemented.
“We take full responsibility and will ensure no user suffers a loss,” BigONE stated. “We remain committed to transparency and are working closely with partners to recover the stolen assets.”
The breach marks another high-profile crypto exploit in 2025, bringing year-to-date industry losses from hacks to more than $2.1 billion.
