AFX Trade on Arbitrum was hacked and lost US$24.15 million. USDC
AFX Trade, a decentralized finance (DeFi) protocol built on the Arbitrum network, recently suffered a serious security breach, resulting in the theft of approximately US$24.15 million in USDC stablecoins. The incident was initially disclosed by relevant media, and the Arbitrum team has confirmed that it is actively investigating the breach.
Attack details
Preliminary reports show that the attacker exploited a vulnerability in the AFX Trade smart contract to steal funds. The stolen assets are mainly the widely used stablecoin USD Coin (USDC). Crucially, the Arbitrum team stated that the network's native bridge had not been breached, which means the vulnerability was limited to the AFX Trade protocol itself and was not caused by a wider failure of the Arbitrum infrastructure. This distinction is crucial for users of other agreements on Arbitrum, whose funds will not be directly affected by this incident.
Impact on DeFi security
This attack further exacerbates a series of high-profile attacks on the DeFi protocol between 2025 and 2026. The total lock-in value (TVL) in DeFi remains a primary target for malicious actors, who are constantly looking for vulnerabilities in smart contract code, oracle manipulation, and opportunities for lightning loan attacks. The AFX Trade incident highlighted the ongoing security challenges facing the DeFi ecosystem and highlighted the urgent need for strict smart contract audits, vulnerability bounty programs, and real-time monitoring systems.
Market and User Impact
The direct impact mainly affects AFX Trade's liquidity providers and users who deposit assets in the agreement. The $24.15 million USDC loss constituted a major financial blow. Although the broader Arbitrum ecosystem remains secure, such incidents can undermine user trust in the DeFi platform. Users are advised to follow the official channels of AFX Trade and Arbitrum for the latest information on potential recovery measures or compensation plans. The incident also reminds all DeFi participants of the importance of due diligence, including using only audited agreements and spreading risk across different platforms.
Conclusion
The theft of US$24.15 million in AFX Trade is a serious security incident that once again highlights the ongoing risks in the decentralized finance sector. Although the Arbitrum network itself was not compromised, the attack emphasized the importance of protocol-level security. The investigation is still ongoing and the crypto community is waiting for more details on the root cause and the possibility of money recovery.
Frequently Asked Questions
Q1: Has the Arbitrum network itself been hacked?
No. The Arbitrum team has confirmed that the native bridges and the broader Arbitrum network have not been breached. This vulnerability is limited to smart contracts under the AFX Trade agreement.
Q2: What was lost in the AFX Trade attack?
About $24.15 million in USDC (USD Coin) stablecoins were stolen from the agreement.
Q3: What should AFX Trade users do?
Users should pay close attention to the official announcements of AFX Trade and Arbitrum for the latest information. At the same time, it is recommended to check the security of any DeFi protocol used and consider spreading assets across multiple platforms to reduce risks.

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