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Sui Dex Cetus Exploited for $260 Million; DEX Trading Paused

Matthew Collom
Latest News
May 22 2025 6:30AM

Cetus Protocol, a key player on the Sui network, fell victim to an exploit draining over $260 million through fake tokens. The attack manipulated price curves and reserve calculations, causing significant impacts to the DeFi landscape. In response, trading has been paused, and further investigations are underway, with CETUS witnessing a notable price drop.

In a significant incident for the Sui network, Cetus Protocol—the primary liquidity provider—was attacked, leading to the theft of over $260 million through the use of counterfeit tokens. This exploit marks a considerable setback for the DeFi ecosystem on Sui, emphasizing critical vulnerabilities that necessitate better security protocols and ongoing contract audits to fortify systems against such assaults.

The perpetrator used fake tokens, notably BULLA, to manipulate price curves and exploit inaccuracies in reserve calculations, allowing them to extract actual assets like SUI and USDC without providing legitimate liquidity. This alarming event raises attention to the need for improving token verification within decentralized exchanges (DEX).

Analysis of the exploit reveals that the attacking wallet—identified as 0xe28b50—still holds more than 12.9 million SUI tokens, valued at roughly $54 million. However, further examination indicates that the wallet’s total valuation reached above $137 million when considering potential fund routes and mixing methods to obscure the origins of the assets.

The ramifications of this incident underscore challenges faced in creating resilient infrastructures on new networks like Sui. On the bright side, the crypto community remains active, as Binance has promptly reached out to offer technical assistance and collaborate on resolving the aftermath of the attack.

In response to the breach, the Cetus team quickly paused all trading activities to mitigate additional damage, initiating a comprehensive investigation into the matter. They expect to release a detailed report shortly. Market reactions were immediate, with CETUS experiencing an initial plunge of 40%, later recovering slightly to settle at $0.1695, reflecting a 17.74% decline within the last day. Its market capitalization currently stands at $122.97 million.

While events like this can shake short-term confidence, they often present opportunities for enhancement in protocols. Decentralization does not equate to infallibility; rather, it embodies an ability to learn and quickly adapt. This situation, though unfortunate, may ultimately fortify both Cetus Protocol and the larger Sui ecosystem in future iterations.

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