Ostium hacked
Ostium, an RWA-focused perpetuals DEX on Arbitrum, suffered an oracle manipulation exploit due to a compromised oracle signer key, draining approximately $18 million USDC. Trading has been halted.
- Estimated loss
- $18,000,000
- Protocols
- Ostium
- Chains
- Arbitrum
- Confidence
- High
- First seen
- 15 Jul 2026, 00:00 UTC