A major security breach at Cetus Protocol has resulted in the theft of an estimated $223 million from the decentralized exchange on the Sui blockchain. The attack exploited pricing vulnerabilities within the protocol, causing a significant impact on the market and raising concerns about the vulnerability of DeFi applications to such incidents. 2025 saw Cetus issue a statement announcing that they had paused their smart contracts to prevent further losses and are working with the Sui Foundation on recovery efforts. Market reactions were swift, resulting in a drop of over 40% for the CETUS token as investors responded to the news. This incident highlights the ongoing need for enhanced security measures in the decentralized finance (DeFi) space. The Coincu research team points out that such attacks highlight the importance of securing price oracles and liquidity pools against manipulation tactics. Cetus Protocol’s current price is at $0.18, reflecting the significant market impact. The incident will likely prompt further discussion about security protocols for future DeFi platforms.