The Sui blockchain and its decentralized exchange, Cetus, are working together to address the aftermath of a $223 million hack

The Sui blockchain and its decentralized exchange, Cetus, are working together to address the aftermath of a $223 million hack that occurred on May 22, 2025.

The Sui blockchain and its decentralized exchange, Cetus, are working together to address the aftermath of a $223 million hack that occurred on May 22. After the attack, security teams froze $162 million of the compromised assets while $60 million in digital funds were moved to Ethereum.

In a direct appeal, Sui and Cetus have asked the community to approve a protocol upgrade to unfreeze the remaining funds and restore them to user accounts. Cetus’ development team explained that only a community-wide, on-chain vote can authorize this protocol upgrade.

Validators and SUI stakers are encouraged to participate in the decision, ensuring transparent governance. According to the Cetus Protocol, no party can impose a unilateral fix, highlighting the importance of decentralized oversight in crisis recovery.

Swift Security Actions and New Protocol Upgrade for Asset Recovery

Cetus and its partners responded to the hack by using new technology and better governance. Following the detection of the attack, the Sui Foundation and Cetus developers teamed up with Inca Digital and law enforcement globally to prevent further losses.

According to security experts, the key problem was a weakness in “get_delta_a” in Cusets’s code, which allowed the attacker to manipulate protocol liquidity and extract assets. By collaborating, Sui validators took steps to freeze stolen funds at the blockchain level to avoid any withdrawals by the attacker. As a result of the full blockade, $162 million was halted from movement, making the stolen funds unusable despite appearing on-chain.

To protect the blockchain’s immutability, Sui developers developed a way to return the assets to the rightful owners without rolling back transactions. Combining this effort with a move to give up Sui’s voting power is meant to guarantee the community that only stakeholders will decide the outcome.

Bounty Announced as Sui Seeks Global Support for Hacker Identification

After offering the attacker a white hat deal with a $6 million reward for voluntarily returning the stolen funds, Cetus revealed no communication had been received. As part of its response, the decentralized exchange announced a $5 million offer for information to identify and arrest the attackers. The Cetus team requested that any relevant tips, including names and locations, be submitted to their security team. The Sui Foundation will handle bounty payments, and legal pursuit will stop if the hacker cooperates.Related: Sui Blockchain Fast-Tracks Whitelist Function After Messy CETUS DEX Hack

Although actions were taken quickly to stop the hacker, the values of some Sui-based tokens dropped sharply in reaction. Nonetheless, industry observers highlighted that this represents a significant turning point for decentralized finance (DeFi) security. The Sui Foundation and Cetus are keeping the community updated as they focus on preserving the protection of assets within the DeFi space.

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