Cetus Protocol, Sui Network’s Largest DEX, Hacked For $223M

Cetus Protocol, the largest decentralized change (DEX) on the Sui community, was hacked on Thursday, dropping about $223 million value of SUI tokens.

The hack focused the SUI/USDC liquidity pool, wiping out almost all liquidity on Cetus and bringing buying and selling on the platform to a halt.

The incident additionally prompted a flash depegging of USDC on the Sui chain, the place it was reported to be exchanging arms for a fraction of a cent. Liquidity in some pairs fell sharply, with some swimming pools dropping as little as $143,000.

Cetus(@CetusProtocol) on #SUI was hacked and misplaced greater than $260M!

The hacker is changing the stolen funds into $USDC and cross-chaining to #Ethereum to change for $ETH, with ~60M $USDC already cross-chained.https://t.co/b0uGu8icXrhttps://t.co/0BpKSaygmr pic.twitter.com/txfxLoImOd

— Lookonchain (@lookonchain) Might 22, 2025

The exploit prompted the entire high 15 SUI-based tokens to plunge by over 75%.

Cetus Protocol Staff Confirms Breach

The Cetus workforce confirmed the breach and suspended buying and selling in a bid to comprise injury. It’s probing the scope of the assault and making an attempt to deliver the system again to a secure state.

“We now have confirmed that an attacker has stolen roughly $223M from Cetus Protocol,” it stated in a publish on X. “We now have took speedy motion to lock our contract stopping additional theft of funds.”

It added that $162 million of compromised funds have been efficiently paused, and that it’s working with the Sui Basis and different ecosystem members on  next-step options, with the aim of recovering the remaining stolen funds.

The attacker used a complicated methodology of assault that concerned spoof tokens reminiscent of BULLA, which have been used to control defective worth computations and reserve techniques within the sensible contracts of Cetus.

The attacker additionally manipulated liquidity to withdraw precise belongings reminiscent of SUI and USDC, exploiting vulnerabilities within the automated market maker logic of the DEX.

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