Japan's February tertiary industry activity index showed a monthly decrease of 0.4%, according to Jin10. This decline was slightly better than the anticipated drop of 0.5%. The previous month's index had recorded a significant increase of 1.70%, highlighting a notable shift in economic activity.

A recent survey conducted by the Bank of Japan reveals that Japanese households anticipate an average inflation rate of 11.4% over the next year. According to Jin10, the median expectation for inflation stands at 10.0%. This survey highlights the growing concerns among Japanese households regarding rising prices and their potential impact on the economy. The findings come amid ongoing discussions about inflationary pressures and economic policies in Japan.

LayerZero LabsはXプラットフォーム上で、4月18日にKelpDAOが攻撃を受け、約2億9000万ドルの損害が発生したと発表し、攻撃者はLazarus Groupであると暫定的に判断している。この攻撃は、KelpDAOの分散型検証ネットワーク（DVN）が依存する下流のRPCインフラへのポイズニングを通じて実行された。攻撃者は一部のRPCノードを制御し、DDoS攻撃と組み合わせてシステムを悪意のあるノードに切り替えさせ、クロスチェーン取引を偽造した。現在、影響を受けたRPCノードはすべて停止・交換され、DVNは稼働を再開している。LayerZeroは、今回の事象はKelpDAOのrsETHアプリケーションの設定に限定されており、他の資産やアプリケーションには影響を与えていないと強調している。KelpDAOは単一のDVNアーキテクチャを採用し、複数のDVNによる冗長化メカニズムを使用していなかったため、偽造メッセージを識別することができませんでした。LayerZeroプロトコル自体に脆弱性は存在せず、複数のDVN構成を採用しているアプリケーションには影響が及びませんでした。LayerZeroは、すべての単一DVN構成プロジェクトをマルチDVNアーキテクチャへ移行させるよう推進しており、1/1構成のアプリケーションに対する署名および検証サービスの提供を一時停止するとともに、法執行機関と協力して盗難資金の追跡を行っています。

Crypto analyst Ansem has expressed concerns about Ethereum's position in 2026, suggesting it is less favorable than in 2023. According to NS3.AI, Ansem believes the Ethereum thesis has been weakening over the years. He attributes this to Solana's growing retail presence, Hyperliquid's dominance in perpetual futures, limited progress in rollup adoption, and the recent Aave rsETH exploit. Despite Ansem's perspective, other community members have contested his assessment, indicating differing opinions on Ethereum's future trajectory.

On April 20, LayerZero Labs released a statement regarding an attack on KelpDAO that occurred on April 18, resulting in a loss of approximately $2.9 billion. According to BlockBeats, the attack is believed to have been carried out by the Lazarus Group, specifically TraderTraitor, with ties to North Korea. The attackers compromised the decentralized verification network (DVN) by poisoning the downstream RPC infrastructure, controlling some RPC nodes, and using DDoS attacks to redirect the system to malicious nodes, thereby forging cross-chain transactions. All affected RPC nodes have been taken offline and replaced, and the DVN is now operational again. LayerZero emphasized that the incident was limited to KelpDAO's rsETH application configuration and did not impact other assets or applications. The vulnerability arose because KelpDAO used a single DVN (1/1) architecture, lacking the redundancy of multiple DVNs as officially recommended, which would have provided independent verification nodes to detect forged messages. LayerZero clarified that its protocol did not have any inherent flaws, and applications configured with multiple DVNs were unaffected, indicating no systemic contagion risk. LayerZero announced plans to expedite the migration of all projects using single DVN configurations to a multi-DVN architecture and has suspended signature and verification services for 1/1 configured applications. The company is collaborating with global law enforcement agencies to investigate the incident and assist industry partners in tracking the stolen funds. LayerZero stated that the event highlights the importance of modular security architecture and serves as a reminder to the industry about potential security risks in RPC verification pathways.

MEET48 is set to host the Hong Kong Web3 Carnival Side Event, 'Entertainment RWA Night,' today from 19:00 to 23:00 in collaboration with Hash Global and Nine Lives Society. According to Foresight News, projects such as POCHAIN, OLAXBT, TATTO, IPDEX, and Renaiss will participate in the event. Additionally, MEET48 COO Kai Xu will deliver a keynote speech at the main venue of the Hong Kong Web3 Carnival tomorrow from 10:45 to 11:00. The presentation will focus on forward-looking strategies in the entertainment industry, highlighting the integration of AI and crypto. MEET48 is an idol fan economy ecosystem built on a Web3 foundation, merging AI and user-generated content. The platform is developing a focus on virtual idols and AI-Web5 entertainment.

Ethereum co-founder Vitalik Buterin outlined the future roadmap for Ethereum over the next five years during his keynote speech at the 2026 Hong Kong Web3 Carnival. According to Foresight News, Buterin emphasized Ethereum's dual core functions: serving as a 'public bulletin board' for applications to publish messages and ensuring user self-sovereignty, verifiability, and fair participation through shared digital objects controlled by code. The short-term protocol goals include five key areas: short-term scaling, the launch of ZK-EVM promotion, early post-quantum readiness, improvements in block construction pipeline, and privacy support. The next hard fork will incorporate several Ethereum Improvement Proposals (EIPs), such as parallelized block-level access lists, gas repricing, extended block verification time for ePBS, and node state synchronization improvements. EIP-8141 (account abstraction) will treat transactions as a series of calls, natively supporting smart contract wallets, gas payment, quantum-resistant signatures, and privacy protocols. Quantum-resistant signature algorithms, existing for 20 years, face efficiency challenges, with signature sizes reaching 2–3 KB and on-chain gas consumption around 200,000 gas. Solutions include hash-based signatures and 'lattice + vectorization' schemes. Mid-term goals focus on the state layer, which is more challenging to scale than the execution layer, requiring state tree optimization and exploring solutions that do not require permanent storage of all states. Long-term protocol goals include maximizing secure consensus (tolerating 49% node failure in synchronous networks and maintaining a 33% finality safety threshold in asynchronous networks), formal verification of all content (using AI-generated mathematical proofs), comprehensive quantum resistance, maximal simplicity, and forward-looking security even without the core developer team (via the walkaway test). Lean Consensus will merge the advantages of Bitcoin-style 'available chain' and BFT-style 'finality' mechanisms, offering quantum resistance and rapid finality (expected within 1–3 slots, approximately 10–20 seconds). By 2025, ZK-EVM is expected to achieve 'sufficient speed' for real-time EVM execution proofing; by 2026, it aims for 'sufficient security' with partial node usage (e.g., independent stakers); and by around 2028, ZK-EVM will become the primary method for chain verification.

米中央軍：米海兵隊は、強襲揚陸艦「トリポリ」号（LHA 7）からヘリコプターで出動し、アラビア海を横断して「M/V Touska」号に上陸し、同船を制圧した。海兵隊は4月20日、ロープ降下によりこのイラン船籍の船舶に乗り込んだ。これに先立ち、ミサイル駆逐艦「スプルーンズ」は、同商船が6時間にわたり米軍の度重なる警告に従わなかったため、「トゥスカ」号の推進システムを無力化していた。（金十）

AI is transforming the decentralized finance (DeFi) landscape by introducing tokens and agents that enhance capital efficiency and organizational computability. According to PANews, this development poses a challenge to traditional Software as a Service (SaaS) models and token economics, leading financial engineering into uncharted territories.

According to the announcement from Binance, the leverage and margin tiers for QQQUSDT, SPYUSDT, EWYUSDT, and EWJUSDT USDⓈ-M Perpetual Contracts have been updated as of 2026-04-21 07:30 (UTC). These changes will impact existing positions opened before the update, and users are advised to adjust their positions accordingly to avoid potential expiration of futures running grids. The updated leverage and margin tiers are as follows: For positions with a notional value of 0 to 5,000 USDT, the leverage has been adjusted from 16-20x to 6-10x, with a maintenance margin rate of 5.00%. For positions between 5,000 and 10,000 USDT, the leverage is now 5x, with a maintenance margin rate of 10.00%. Positions ranging from 10,000 to 25,000 USDT will also have a leverage of 5x, maintaining the same margin rate. For larger positions, from 25,000 to 50,000 USDT, the leverage remains at 5x, with a 10.00% margin rate. Positions between 50,000 and 100,000 USDT will have a leverage of 4x, with a 12.50% margin rate. For positions from 100,000 to 500,000 USDT, the leverage is set at 3x, with a 16.67% margin rate. Finally, positions from 500,000 to 8,000,000 USDT will have a leverage of 2x, with a 25.00% margin rate, and positions from 8,000,000 to 15,000,000 USDT will maintain a leverage of 1x, with a 50.00% margin rate. These updates are part of Binance's ongoing efforts to optimize trading conditions for its users. Traders are encouraged to review the new parameters and adjust their strategies accordingly to align with the updated leverage and margin requirements.

ワールド・リバティ・ファイナンシャルは、招待制の「ワールド・リバティ・フォーラム」をマーアラゴで開催する。金融、テクノロジー、政策分野のシニアリーダー約300名が集い、通貨と規制の未来について議論する。この発表は、同社が新たな暗号資産貸付プラットフォームを立ち上げたことに続き、ステーブルコインおよびデジタルバンキングサービスの拡大計画を明らかにしたものである。

トランプ家のワールド・リバティ・トラストは、米ドルペッグ型ステーブルコイン「USD1」の発行と保護を目的として、米国国家銀行免許の取得を申請した。このトークンは既に34億ドルの価値を有し、主要な暗号資産取引で利用されている。同トラストは機関投資家向けに保管・換金サービスを提供する方針だ。

ジャスティン・サンは、ワールド・リバティ・フィナンシャルが彼のウォレットをブラックリストに登録し、900万ドルの送金後に彼のWLFIトークンを凍結したため、約6000万ドルを失った。この凍結により、彼は保有するトークンにアクセスすることも取引することもできなくなり、トークンの価格は9月以降40％以上下落した。

トランプ兄弟はKorea Blockchain Week 2025で講演し、韓国の暗号市場における機会を強調した。エグゼクティブは地元のステーブルコイン・プロジェクトとのパートナーシップを模索し、韓国のデジタル資産に対する国際的な関心の高まりを示した。

米国の裁判所は、ジャスティン・サンがブルームバーグに30億ドル以上の暗号保有を報告するのを止めさせようとした試みを却下した。判事は、機密保持契約は存在せず、彼のセキュリティ上の懸念も退け、詳細の公表を認める判決を下した。

WLFIは大口トークン保有者による価格操作の可能性を警告し、不審な動きに関連する272のウォレットを凍結した。ジャスティン・サン氏を含む著名な投資家が影響を受け、ウォレットのセキュリティとコンプライアンス対策に対する懸念が高まっている。

トランプ・ファミリーのWLFIとUSD1の暗号トークンが韓国の主要取引所に登場し、一般の強い関心を集めた。WLFIの価格は高いボラティリティを示し、市場の不確実性とこのプロジェクトがトランプ・ブランドに大きく依存していることを浮き彫りにした。

トランプ大統領が支援する企業World Liberty Financialは、その$WLFIトークンを主要取引所に上場し、イーサリアム、ソラナ、バイナンスのブロックチェーンで取引が可能になった。同社はウォレットや取引所の計画で拡大しており、最近ではAlt5の買収で7億5000万ドルを調達し、その一部は$WLFIコインの購入に使われた。