Woofun AI reports that Ostium disclosed a security incident on July 15 where attackers compromised its off-chain price data infrastructure to submit fraudulent reports. By leveraging these manipulated prices to open large positions, the attackers extracted approximately 23,752,746 USDC from the liquidity pool. The protocol halted trading and froze all contracts within 60 minutes of the initial transaction. Ostium confirmed that trader collateral, stored in independent smart contracts, remains unaffected and all positions stay open. The team is collaborating with Mandiant, zeroShadow, Collisionless, SEAL 911, and law enforcement to investigate. Upon resumption, positions will be marked at reopening prices, shielding users from suspension-period volatility.