[Hacker Avi Eisenberg, Who Once Arbitraged $110 Million, Shows On-Chain Activity Again] According to monitoring by Arkham (@arkham), Avi Eisenberg, the hacker who arbitraged $110 million using Mango Finance in 2022, recently signed a new transaction on his on-chain address. Eisenberg was previously arrested and imprisoned for market manipulation, and his on-chain movements after release have sparked heated discussions within the community.