Ostium experienced a security issue that resulted in a loss of funds from its public OLP vault. The market reacted quickly: @ostium's implied FDV has dropped to $130M+, down 28.27% in 24h. Trade now:

Trading on Ostium reopens Thursday, July 23 at 10:00am ET. Below covers what happens to open positions, how trading comes back online, and a recovery plan update for liquidity providers. What happens to positions at reopen Open positions and pending orders will carry over as they are. Traders do not need to do anything in advance. When trading resumes, positions will be marked to the live market price at that moment. Only the live market price when trading resumes matters, not the price movements during the pause. A position will be liquidated only if it is below its liquidation level at that reopening price. Any take-profit, stop-loss, or limit order whose level has been reached at time of live market prices at 10:00 AM ET on July 23, 2026 will execute then. Traders have 24 hours before reopen to prepare to manage their positions. How reopening will roll out To help bring the protocol back safely, we will enable actions in stages. At reopen, protective and reduce-only actions will come first: closing positions, topping up collateral, updating/cancelling orders, automated take-profits, stop-losses, and liquidations. Opening new positions follows shortly after, once pending orders have cleared. We will update when full trading is live. For liquidity providers New OLP deposits are paused. This is designed to ensure existing LPs who remain continue to earn a share of protocol revenue on a smaller capital base. Withdrawals will process at the next settlement. We will provide additional details regarding the recovery in a follow-on post, including the structure and allocation of the capital commitment. For your safety Please remain vigilant and know we are not circulating any recovery forms, and will never ask for your private keys, seed phrase, or funds. There are currently illegitimate accounts attempting to impersonate the company and official team accounts. We will post when trading is live. Trust only official Ostium channels. Updates will be posted here, on our Telegram announcements channel, and on the app.

🚨SlowMist TI Alert🚨 💸 @Ostium Loss: ~11,862,445 USDC 🔍 Root Cause: An authorized oracle signer was used to submit malicious price reports through a registered forwarder. The attacker provided validly signed but manipulated oracle data, which was accepted by the oracle verification mechanism. By repeatedly opening and closing trades with artificially favorable prices, the attacker generated artificial profits and drained funds from the OstiumVault. 📌 Attacker Address: 0xd1794196f0fc99c7f27970e661597d77d9a85869 📌 Victim Address: 0x20d419a8e12c45f88fda7c5760bb6923cee27f98 (vault) 📌 Vulnerable Contract: 0x0aebc4094b60ea4e21e937e80dafdd58c07c5ebb (OstiumPrivatePriceUpKeep impl) & 0xd456939e54f68ef9b0be62abb2ec4a37397cb814 (OstiumVerifier) Impact: The attacker exploited compromised oracle privileges to submit manipulated price reports and execute repeated profitable trades, draining ~11.86M USDC from the vault. Powered by Tx:

JUST IN: @Ostium just posted its strongest quarter: $7.45M in revenue, and Q2 isn't over yet. Revenue is up ~120x since Q1 2025, making them one of the fastest growing apps by revenue. Built on Arbitrum. Made for the programmable economy.

Clash of Perps officially partners with @Ostium. Integration is now live! Trade tech stocks, gold, yen and more straight from the most liquid markets in the world on @arbitrum. Raid other traders and dominate!

A DeFi exploit becomes a wallet problem fast. Ostium paused trading after an apparent ~$18M vault exploit, with reports pointing to abused oracle reports and stolen USDC. Users need clear approval checks and fast revoke paths. 🛡️🔍 #HootArk# #Web3Security#