BlockSec：Futureswap 合约遭攻击损失约 39.5 万美元，疑与记账逻辑漏洞有关

Core Insights - The decentralized trading protocol Futureswap on the Arbitrum chain suffered an attack resulting in a loss of approximately $395,000 [1] - The attacker executed multiple changePosition operations to deplete funds and withdrew a significant amount of USDC [1] - The exact cause of the incident remains under investigation, but preliminary analysis suggests it may be related to unexpected changes in stableBalance accounting during position updates, leading to erroneous USDC releases during liquidation or closing [1] - Security firms are attempting to contact the project team but have not yet received a response [1]