Ostium (AFX) loses $24M in off-chain breach and oracle manipulation
On October 23, 2026, DeFi protocol Ostium (AFX) lost an estimated $24 million. Attackers compromised off-chain infrastructure, fed false price data into the protocol's oracles and drained liquidity through its smart contracts.
- Ostium (AFX) losses are estimated at $24 million
- The breach started in off-chain servers and APIs, not contract code
- Poisoned oracle prices triggered the draining of liquidity pools
- Experts urge multiple oracles and automatic circuit breakers
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