币界网报道：Iran's largest crypto exchange Nobitex has uncovered a sophisticated hack that secretly siphoned Bitcoin from user wallets over several months before being detected. The breach, discovered during a routine security audit, involved attackers compromising private keys to gradually withdraw funds in small, inconspicuous transactions totaling an undisclosed amount. Nobitex CEO Babak Mohammadi stated the exchange has frozen affected accounts and is working with blockchain forensic firms to trace the stolen assets, while implementing enhanced security measures including multi-party computation (MPC) technology. The incident highlights growing concerns about advanced persistent threats in crypto exchanges, particularly in regions like Iran where international sanctions complicate cybersecurity collaborations. Users are being compensated from Nobitex's insurance fund as investigations continue into whether the attack originated externally or involved insider participation.