Top crypto + DeFi news this week 🗞️ 🔹 Aave DAO makes $50M annual token buybacks permanent, allocating weekly purchases up to $1.75M worth of AAVE to boost token value and strengthen treasury 🔹 ZKsync proposes utility-focused tokenomics shift, transitioning ZK from pure governance to revenue-sharing model with staking rewards and buyback-burn mechanism 🔹 Balancer suffers $128M exploit despite multiple audits, with sophisticated attack targeting v2 vaults across Ethereum, Base, Polygon, and Arbitrum via invariant manipulation