Analyst: BarnBridge Agreement governance attack, loss of approximately $776,000

The BarnBridge agreement was subjected to a governance attack on the Ether House, at a loss of approximately $776 million. According to BlockSec monitoring, the attackers obtained DAO governance authority, upgraded the smartyield/controller agent to a malicious contract, using USDC authorization from 50 user accounts to transfer funds to the assailants through transferfees。