Cyber Hackers Steal $27 Million from BigONE’s Hot Wallet

Key Points

1. BigONE exchange was hacked on July 16, 2025, losing $27 million from its hot wallet, including 120 BTC, 350 ETH, 1,800 SOL, and 8.54 million USDT.

2. The attack was identified as a supply chain attack, with BigONE detecting the anomaly quickly but still affecting eight other cryptocurrencies.

3. BigONE has assured users that the losses will be covered by its insurance fund, sourced from operational revenues.

4. The exchange has taken steps to isolate the attack path and enhance security measures following the breach.

5. Blockchain tracking is ongoing to monitor the movement of stolen funds, with researcher ZachXBT noting BigONE wallets' involvement in high-volume transactions.