Welcome to Finance Redefined, your weekly dose of essential decentralized finance (DeFi) insights — a newsletter crafted to bring you significant developments over the last week. The much-awaited airdrop of layer-2 scalability protocol Arbitrum has dominated headlines throughout the week. The hype around the token has led to exploits, fake airdrops and even a significant surge in volume for other layer-2 protocols. Apart from the Arbitrum hype, the Euler Finance hack has also seen some new developments. The person or group behind the attack returned a portion of the funds after the protocol developers put a million-dollar bounty on their heads. Some of these funds were also moved to blacklisted…