Coinworld News on January 10 reported that according to BlockSec monitoring, a suspicious transaction occurred in the FutureSwapX contract on the Arbitrum chain, with an estimated loss of approximately $395,000. BlockSec stated that it has attempted to contact the team but has not received a response so far. The attacker appears to have stolen funds through multiple changePosition operations and ultimately withdrew USDC. Since the contract is not open source, the exact root cause still requires further investigation. Based on on-chain behavior, it is suspected that this incident may be related to unexpected changes in stable balances during early position updates, which caused USDC to be released when positions were reduced or closed.