DEX

South Korea's Seoul Southern District Prosecutors' Office arrested five suspects on May 11, 2026, and indicted them on May 27, 2026, in what it described as the country's first criminal rug-pull case tied to a decentralized exchange. Prosecutors allege the group manipulated CATFI on a Solana-based DEX, draining liquidity and causing 256 investors to lose a combined 900 million won ($600,000) while the organizers made about 400 million won ($260,000).

Stake DAO's vsdCRV on Arbitrum was exploited after a suspected deployer-key compromise, enabling the minting of 5,446,744,073,709 tokens and swaps into about 43.78 ETH. The incident prompted Stake DAO, Curve, and Beefy Finance to pause or warn on affected products, underscoring how automated vaults can conceal dependencies like cross-chain messaging, wrapper accounting, and key control.

ETH slipped below $2,000 over the past 24 hours for the first time since early 2025, trading at $1,972.82 after a 13.4% decline over the past month. The move coincided with $241M in long liquidations and rising derivatives activity, with open interest cited at $12.5B and $32.69B from separate datasets. DeFi metrics also weakened, including Aave loans at $8B (down 14% in a month) and Ethereum-based DeFi holdings at $41.78B versus over $91B in August 2025.

South Korean prosecutors say they have arrested and indicted five people in what they describe as the country’s first criminal case targeting a rug pull conducted on a decentralized exchange. Authorities allege the CATFI token scheme on a Solana-based DEX left 256 investors with about 900 million won (roughly $600,000) in losses, while organizers took around 400 million won in illicit profits.

Hyperliquid (HYPE) pushed above $50 to print a new all-time high and move into the top 10 cryptocurrencies by market cap, taking the No. 9 spot after passing Dogecoin. Marketcapof data suggests that if HYPE’s $15.99 billion market cap were to exceed Ethereum’s roughly $250.99 billion, the token could be priced around $1,127, with an extreme estimate of $2,633.

Blockaid reported an exploit affecting StakeDAO on Arbitrum in which an attacker allegedly took control of the protocol's deployer private key. The incident involved a manipulated LayerZero cross-chain flow that minted 5,446,744,073,709 vsdCRV tokens before the attacker swapped tokens for ETH across multiple DEX routes and was estimated to have extracted roughly 43.9 ETH (about $91,000).

On May 26, OpenZeppelin co-founder Manuel Aráoz said he now views all DeFi as unsafe and claimed AI coding agents have shifted the advantage to attackers. He added he has been urging friends and family to exit positions, citing Aave, MakerDAO, and Compound among protocols he no longer considers safe. Others on X disputed the claim, arguing most recent losses stemmed from operational and credential failures rather than smart-contract bugs.

On May 26, 2026, OpenZeppelin founder Manuel Aráoz said he now views all DeFi as unsafe, arguing AI coding agents can surface vulnerabilities faster than defenders can patch them. He cautioned that even established protocols such as Aave, Sky Protocol, and Compound could be exposed, while other commentators argued many exploits still hinge on human errors and centralized control points. DeFi exploits eased in May, with 14 attacks taking a bit over $44M, even as broader 2026 losses were estimated at $285M and $437.4M across different threat categories.

Exchange OS has launched on OKX's Xlayer, enabling developers to deploy spot markets, perpetual futures, and prediction markets without requiring approval. Glassnode has been named the official onchain data provider, delivering unified onchain, spot, and derivatives data to the protocol. The launch comes as decentralized perps competition remains led by Hyperliquid, which posted $170.29B in 30-day volume and $5.53B in TVL.

Aster (ASTER) DEX has introduced leveraged OpenAI pre-IPO perpetual contracts, letting traders speculate on implied private-market valuations with up to 5x leverage. The product arrives as tokenized equity markets move further on-chain, with OpenAI-linked synthetic pricing hovering around $1,600 per share-equivalent. While broader participation may increase, thinner liquidity and higher leverage can also amplify volatility and liquidation risk.