On-chain analytics firm Arkham announced on X that "evidence has been found that the wallet of Avraham Eisenberg, the hacker of DeFi protocol Mango Markets, signed new transactions," raising speculation about his return. Eisenberg gained notoriety for the approximately $110 million Mango Finance exploit in 2022 and was later imprisoned after hinting at an Aave attack and a Curve-related position liquidation incident. In January, U.S. prosecutors appealed the acquittal of Avraham Eisenberg.