Security Agency: Nearly $400,000 Lost in Theft of FutureSwapX Contract on Arbitrum Chain

According to BlockSec monitoring, a suspicious transaction occurred on the Arbitrum chain involving the FutureSwapX contract, with an estimated loss of approximately $395,000.

BlockSec stated that they have attempted to contact the team but have not yet received a response. It appears that the attacker stole funds through multiple changePosition operations, ultimately withdrawing 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 fluctuations in stable balances during early position updates, which led to the release of USDC when positions were reduced or closed.