Crypto Platform BigONE Admits to $27M Breach, Commits to Reimbursing Users in Full

BigONE Confirms $27M Hot Wallet Hack, Commits to Full User Repayment

Crypto exchange BigONE has confirmed it suffered a $27 million hack on July 16, following a breach of its hot wallet infrastructure. The exchange has assured all users will be fully compensated for any losses incurred.

In an official statement, BigONE said the unauthorized activity was quickly identified and contained. No private keys were compromised, and the platform stressed that all user funds remain safe. The breach has been traced to a third-party vulnerability.

Blockchain security firm SlowMist has been engaged to support the ongoing investigation, with tracking efforts already underway across major chains including Bitcoin, Ethereum, Tron, Solana, and BNB Chain.

Breakdown of Stolen Assets:

120 BTC
350 ETH
9.5 billion SHIB
7.1 million USDT (across chains)
538,000 DOGE
1,800 SOL
1 WBTC
20,730 XIN
15.7 million CELR
25,487 UNI
16,071 LEO

BigONE said it will cover the losses using platform reserves—denominated in BTC, ETH, SOL, USDT, and XIN—and, where necessary, through external borrowing for harder-to-source tokens.

While trading and deposits are expected to resume shortly, withdrawals will remain paused until security enhancements are completed.

“We deeply regret the disruption and are committed to full transparency as we work to recover the stolen funds and restore services,” the exchange said in a public update.

The hack adds to a growing list of security incidents in 2025, with crypto-related breaches now totaling over $2.1 billion in losses year-to-date.