# Major Crypto Heist: Ostium Loses $23.7 Million in Sophisticated Attack

*Published July 26, 2026*
*Source: [https://www.bleepingcomputer.com/news/security/hackers-steal-237-million-in-crypto-from-ostium-in-off-chain-attack/](https://www.bleepingcomputer.com/news/security/hackers-steal-237-million-in-crypto-from-ostium-in-off-chain-attack/)*

## Executive Summary

Ostium has suffered a significant security breach, losing $23.7 million in cryptocurrency due to an off-chain infrastructure attack. This incident highlights the need for enhanced security measures in protecting external components of digital currency systems.

## Article

A recent cyber incident has resulted in the theft of $23.7 million in cryptocurrency from Ostium, a prominent player in the digital currency market. This breach was executed via an off-chain infrastructure compromise, allowing attackers to bypass traditional blockchain security measures. Ostium's liquidity vaults were specifically targeted, highlighting vulnerabilities in the system's external components. The breach underscores the critical importance of securing off-chain elements in cryptocurrency platforms. Ostium has initiated an investigation into the incident and is working with cybersecurity experts to prevent future breaches. The company is also reviewing its security protocols to identify and patch any weaknesses that may have been exploited during the attack. This incident serves as a stark reminder for all digital asset platforms to enhance their security measures, particularly those related to off-chain infrastructure, to safeguard against sophisticated cyber threats.