Evgeny Gaevoy, the founder of the encrypted market maker Wintermute, tweeted to update the details of the attack, saying that the attack may be related to his wallet for DeFi proprietary trading operations. Wintermute did use Profanity and an internal tool to generate addresses with many zeros in front. Switched to a more secure key generation script after June, but due to an internal (human) error, the wrong function was called, blacklisting the router instead of the carrier (signed contract). In addition, Evgeny Gaevoy stated that if the hacker returns $160 million in stolen assets to the 0x4f3a120E72C76c22ae802D129F599BFDbc31cb81 wallet address, a 10% bounty will be paid to the hacker.