「Buddy」 Flash Loan Attack Reverts Overnight, Experiences Partial Liquidation in the Early Morning, with a Weekly Loss of Nearly $4 Million

On April 30, Ant Group’s self-developed zero-knowledge proof virtual machine (zkDTVM) claimed global first place in Ethereum’s EthProofs benchmark evaluation — compressing block proof speed to 3.7 seconds under unified hardware and testing rules, breaking the prior industry record of 4.2 seconds. In blockchain’s layered architecture, zkVMs play a critical role in packaging and verifying transactions, where proof speed directly determines a system’s throughput limit. The industry has long targeted “real-time proof” as a high-throughput validation goal, but practical implementation has faced persistent bottlenecks; controlling block proof speed under 10 seconds is already recognized as an excellent standard. This new global record underscores Ant Group’s ongoing global leadership in core blockchain technology. Moreover, the advancement unlocks new capabilities to support trusted interoperation between smart entities.

April 30th: Per Onchain Lens data, a FalconX-linked wallet (0xEbE) deposited 11.94 million USDC into HyperLiquid and boosted its 20x-leveraged CL long position to 202,000 CL (valued at $21.6 million). The whale additionally holds a small 20x-leveraged long position in BRENTOIL, plus 10x-leveraged short positions in HIMS and RIVN.

April 30 Per Blockaid monitoring, NEAR ecosystem app SweatEconomy was targeted in a sustained attack overnight. Multiple Sweat Foundation-linked accounts were drained in roughly 30 seconds, totaling around 13.71 billion SWEAT—about 65% of the token’s total supply. Funds were transferred via Ref Finance and the Wormhole/Portal Bridge. Subsequently, the SWEAT team issued a response stating all user external account balances have been fully restored, and operations are back to normal.

Binance Margin will update its leveraged borrowing interest calculation method effective 08:00 UTC on April 30, 2026, the exchange announced in an official statement on April 30. For newly initiated leveraged borrowings: - Interest begins accruing immediately when the borrowing is created. - The first interest calculation uses the actual seconds between the borrowing time and the next hourly settlement, calculated pro rata. - After the first period, interest is charged hourly (once per full hour) until the borrowing is fully repaid. This change aims to improve interest calculation clarity and align interest costs more closely with actual borrowing duration.

April 30 — On-chain analyst Ai Auntie (@ai_9684xtpa) reports that a whale who accumulated a 120,000 ETH long position has locked in massive profits over the past two months via ETH longs. The whale has since expanded their position again, holding $182 million in assets across two addresses. With an entry price of $2,265, they now hold a floating profit of $514,000 — retaking the top spot for ETH holdings on Hyperliquid.