Hackers Exploit BigONE’s Systems, Steal Millions in Bitcoin and Ethereum
2025-07-16 15:09:04
Main Idea
BigONE exchange reported a security breach involving its hot wallet, detected by SlowMist, but assured private keys remain secure and services have been restored; this follows a $42 million exploit on GMX, where most funds were returned.
Key Points
1. BigONE detected abnormal asset movements due to a third-party attack, but confirmed private keys were secure and losses included 120 BTC, 350 ETH, and over 8 million USDT.
2. BigONE temporarily suspended services but later restored them after a system upgrade.
3. ZachXBT criticized questionable offshore exchanges, suggesting a 'natural cleanse' without government intervention.
4. GMX was exploited for $42 million due to a re-entrancy vulnerability, but the hacker returned $40.5 million and was offered a 10% white hat bounty.
5. GMX confirmed its V2 protocol was unaffected by the exploit.
Description
Crypto exchange BigONE has reported a security breach involving its hot wallet infrastructure, which resulted in an estimated $27 million loss. The incident was detected by blockchain security platform SlowMist on July 16. Hot Wallet Nightmare SlowMist said that the production network was compromised, and the operating logic of account and risk control-related servers was modified, which allowed the attacker withdraw funds. BigONE confirmed the breach after the exchange’s real-time monitoring sy...
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