Tag: 中东

BroadChain learned that on April 20 at 12:16, according to TechFlow, on April 18, Kelp DAO suffered a theft of $292 million due to a configuration vulnerability in its LayerZero cross-chain bridge, making it the largest DeFi security incident so far in 2026. The root cause of the vulnerability was that its OFT bridge adopted a 1-of-1 DVN validator node configuration, allowing attackers to forge cross-chain messages and mint 116,500 rsETH out of thin air on the Ethereum mainnet by compromising just a single node. As early as April 6, an open-source AI audit report had explicitly flagged this risk, pointing out that its DVN configuration was opaque, had a single point of failure, and the attack pattern resembled those on Ronin and Harmony.

BroadChain learned that at 11:30 on April 20, according to PANews, the Ethereum restaking protocol Kelp DAO confirmed that its rsETH contract suffered a suspicious cross-chain attack, has suspended mainnet and multiple L2 contracts, and initiated an investigation. Lido has also paused new deposits for its earnETH product. DeFiLlama data shows that the incident triggered a large-scale withdrawal of funds from lending protocols, with Aave experiencing a net outflow of approximately $6.2 billion (-23%). On-chain investigator ZachXBT pointed out that the RAVE token plummeted from $26 to $1 within 24 hours, with its market cap evaporating by about $6 billion, potentially involving market manipulation, as 95% of its supply is controlled by a few addresses. Additionally, Laye

BroadChain learned that at 11:16 on April 20, according to PANews, on-chain monitoring revealed that a whale address, which previously purchased 163,405 ETH (approximately $440 million) and 4,000 cbBTC (approximately $296 million) via OTC trading, has withdrawn 98,032 wstETH (approximately $272 million) and 3,000 cbBTC (approximately $221.6 million) from the Aave protocol. Due to a vulnerability in the KelpDAO rsETH cross-chain bridge, the whale was unable to directly withdraw ETH, and therefore exchanged 7,438 aEthWETH (approximately $16.83 million) for 1,930 stETH and 5,272

BroadChain learned that at 11:16 on April 20th, according to PANews, incomplete statistics show that last week (April 13th to 19th), the global blockchain field disclosed a total of 15 investment and financing events, with a total amount exceeding $165 million. There were 4 events in the DeFi track: Brix secured $5.5 million in funding, planning to launch the Turkish Lira yield token iTRY on MegaETH; Votre completed a $3.75 million seed round. The AI+Web3 track saw 4 events: OpenGradient raised a cumulative $9.5 million; Nava completed an $8.3 million seed round. The infrastructure and tools track had 2 events: Paxos Labs completed $12 million

BroadChain learned that at 10:16 on April 20th, according to PANews, Singapore-based crypto custody and wallet service provider Cobo has launched the Cobo Agentic Wallet, which allows AI agents to execute on-chain tasks. The wallet introduces a human-machine authorization protocol and a modular skill framework. Its core "covenant" mechanism dynamically generates execution boundaries and termination conditions for each task, enforced at the infrastructure level. The wallet utilizes multi-party computation technology for security, ensuring that even if the AI agent is compromised, the large language model experiences hallucinations, or credentials are leaked, a valid signature cannot be generated alone. The Cobo Agentic Wallet is compatible with LangChain, Open

BroadChain learned that at 10:00 on April 20, according to TechFlow, Kelp DAO's cross-chain bridge based on LayerZero was attacked, with approximately $292 million worth of rsETH stolen, making it the largest DeFi attack event so far in 2026. Affected by this, Aave, SparkLend, and Fluid have frozen rsETH-related markets, and Curve Finance has also suspended its LayerZero cross-chain bridging functionality. Aave saw a single-day withdrawal of $6.6 billion, with USDT and USDC borrowing rates rising to 15%. Additionally, data from Token Unlocks shows that this week, LayerZe

BroadChain learned that at 10:00 on April 20, according to PANews, the Ethereum stablecoin platform Reserve announced that, due to closely monitoring the Kelp DAO attack incident, it has temporarily suspended the minting and rebalancing functions for eUSD and USD3, as well as RSR unstaking, while the redemption function remains open. The platform assessed that if the mainnet rsETH experiences a devaluation of 15.5% to 18.5%, it could potentially trigger bad debt on Aave and affect the USDC collateral on Aave V3. In such a scenario, RSR stakers within USD3 and eUSD might serve as 'first loss capital' to provide protection, but the impact is expected to be minimal, and the existing RSR over-collateralization is sufficient to cover it.

BroadChain learned that at 09:46 on April 20, according to PANews, DefiLlama founder 0xngmi analyzed and pointed out that Kelp DAO faces three handling options in the rsETH incident. Option one is for all users to share the loss, with users facing an 18.5% impairment. If this option is adopted, there are currently about 666,000 rsETH across all Aave deployments. Assuming all chain positions are at a 95% liquidation LTV, their net value would be wiped out, generating approximately $216 million in bad debt. Among this, Umbrella ETH could cover $55 million, the Aave treasury could cover $85 million, leaving a $76 million shortfall.

BroadChain learned that at 09:46 on April 20, according to PANews, the 233-year-old New York Stock Exchange is making a major push into digital assets, planning to build a 7×24 trading platform for blockchain-based securities. This marks a significant transformation driven by distributed ledger technology. Michael Blaugrund, Vice President of Strategy at ICE, the NYSE's parent company, stated that exchanges are entering a new wave of evolution from electronic to digital, and foresee blockchain becoming a crucial carrier for their core business. In action, ICE invested approximately $200 million in cryptocurrency exchange OKX in March this year, valuing the latter at $25 billion.

BroadChain has learned that at 09:30 on April 20, according to TechFlow, Curve Finance announced on April 20 that due to a hacker attack on the LayerZero infrastructure of rsETH, its LayerZero infrastructure has been suspended and will be restored after the root cause is identified. This suspension affects the CRV cross-chain bridging functionality from chains such as BNB Chain, Sonic, Avalanche, Fantom, Etherlink, Kava (chains using native bridges are unaffected), as well as the crvUSD fast bridging functionality (L2 slow bridging is still available). It is also reported that KelpDAO also experienced a leak.

BroadChain learned that at 09:16 on April 20, according to TechFlow, on April 20, DefiLlama founder 0xngmi published an analysis of the bad debt disposal pressure faced by Aave following the Kelp DAO hack and proposed three potential solutions. The first solution involves socializing the losses, where users would bear an 18.5% impairment, potentially generating approximately $216 million in bad debt. Aave's umbrella insurance could cover $55 million, and the treasury could supplement $85 million, leaving a gap of about $76 million. The second solution involves executing a "rug pull" on rsETH holders on L2, which would generate approximately $341 million in bad debt, Arb

BroadChain learned that at 05:16 on April 20, according to CryptoNews, XRP strongly broke through the $1.40 range this week, recording the strongest weekly gain among major cryptocurrencies, with the market still holding bullish expectations for its performance next week. The token climbed to $1.45 at one point this week before encountering resistance and pulling back. Its upward movement showed a controlled, steady climb, suggesting accumulation of funds, but trading volume was about 70% of the weekly average, limiting the certainty of the rise. XRP outperformed Bitcoin and Ethereum over seven days, and its relative strength is meaningful, but volume support remains to be seen. Macro headwinds persist, with the FOMC meeting on April 28-29 approaching, and on Deribit, the price