Balancer Loses $129M in Multi-Chain Exploit Targeting V2 Vaults

Balancer, a decentralized liquidity protocol, lost approximately $129 million in a security breach affecting Ethereum, Base, Optimism, Polygon, Sonic, and Berachain. Attackers exploited vulnerabilities in V2 vault infrastructure to drain liquid staking tokens. The protocol confirmed it is investigating the incident with its engineering and security teams.