Digital Asset
Intelligence
Security Incident · Arbitrum Ecosystem

Ostium Private Key Leak: $18.00M Reported Loss

·Historical incident record

Incident Overview

Ostium, an RWA-focused perpetuals DEX on Arbitrum, suffered an oracle manipulation exploit. The attacker used a compromised oracle signer key to submit fraudulent future-dated price reports, generating artificial trading profits and draining approximately $18 million USDC from the liquidity vault. The protocol has halted trading and is investigating.

Sources & References

This record presents information attributed to the linked sources. Incident dates describe the original event, not a new report. Reported loss figures reflect the source record and are not current market valuations.

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