Arbitrum-based perpetuals exchange Ostium has suspended trading after an $18.4 million exploit tied to a compromised off-chain oracle key, highlighting again how vulnerable trading venues can be when price infrastructure fails.
The attack did not appear to stem from a direct breach of Ostium’s smart contract code. Instead, the validated source material points to manipulation of price feed reports through a compromised oracle private key. That distinction matters because it shows the risk was not only in on-chain contracts, but in the off-chain infrastructure feeding data into the system.
Perpetuals exchanges depend on accurate prices. If the price feed can be manipulated, the entire trading venue becomes exposed.
Ostium’s response was to halt trading while investigating the incident.
TL;DR
Ostium suspended trading after an $18.4 million exploit.
The attack involved a compromised off-chain oracle private key.
The inciden
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