July 15, 2026·Bearish·critical issue

Ostium Vault on Arbitrum Exploited for $20M

The Ostium Vault on Arbitrum was exploited for over $20 million USDC. The stolen funds were swapped to ETH and split across 12 wallets, totaling approximately 12,085 ETH, which remain parked on Arbitrum with no bridging detected.

Detected & updated continuously · Source: Nebula

Mentioned

Arbitrum (arb)

@Ostium

Sources

@AMLBotHQ

Ostium Vault on Arbitrum was exploited for more than $20M USDC Stolen USDC was then swapped to ETH and split into 12 wallets (~12,085 ETH total). Funds remain parked on Arbitrum, no bridging detected so far We are monitoring the related addresses for movement https://t.co/Dxa0Fk7G25