Deus Finance derivatives platform was exploited via oracle manipulation. A flash loan was used to move prices in Solidly and Spirit pools, causing the Muon oracle to report inflated prices. This triggered cascading liquidations rendering users insolvent.

DeFi protocol Deus Finance was attacked by a flash loan, and hackers manipulated the price of the oracle machine and stole about $3 million, including 200,000 DAI and 1101.8 ETH through Tornado mixing.