---
title: "Another DeFi Exploit: Perp DEX Ostium Loses $18 Million in Oracle Attack"
url: https://thecoingazette.com/another-defi-exploit-perp-dex-ostium-loses-18-million-in-oracle-attack/
date: 2026-07-15
modified: 2026-07-15
lang: en
author: "Coin Gazette Editorial"
description: "Hackers manipulated Ostium's price feed by compromising an oracle signe key, allowing them to drain roughly $18 million from the Arbitrum-based perpetuals exchange."
categories:
  - "Crypto News"
  - "Defi"
tags:
  - "arbitrum"
  - "Attack"
  - "Defi"
  - "dex"
  - "exchange"
  - "exploit"
  - "perpetuals"
  - "price"
word_count: 23
---

# Another DeFi Exploit: Perp DEX Ostium Loses $18 Million in Oracle Attack

Hackers manipulated Ostium's price feed by compromising an oracle signe key, allowing them to drain roughly $18 million from the Arbitrum-based perpetuals exchange.