This is a summary of important news in the Web3 industry and crypto market up to February 21, 2026:

🌐 Macroeconomic policy and regulation

· The reversal of US tariff policy: The Supreme Court ruled 6-3 that the global tariffs imposed by the Trump administration were illegal, as it exceeded its authority when invoking emergency powers. Trump subsequently responded that he would sign a new order to impose a 10% tariff globally.

· Tether stops supporting CNH₮: Announced the cessation of support for the offshore Chinese yuan stablecoin CNH₮, and attention is needed for subsequent migration arrangements.

· SEC releases positive signals: Commissioners support a 2% capital deduction for payment stablecoins and promote rule amendments, which may benefit the development of compliant stablecoins.

· Nasdaq's layout for tokenization: Currently hiring a crypto product manager to lead the tokenization strategy, marking the traditional financial giant's accelerated entry into this field.

📈 Market and mainstream coins

· Market fluctuations repaired: BTC consolidates around $68,000, ETH stabilizes around $1,960. Recent price corrections are mainly influenced by tightening macro liquidity and outflow of institutional funds.

· Market sentiment 'extreme fear': The fear and greed index today is only 8 (yesterday it was 7), although it slightly increased, it still falls under 'extreme fear', which is usually a signal of 'be greedy when others are fearful'.

· Institutions: Short-term corrections are not trend reversals: VanEck report indicates that BTC fell 29% in the past 30 days and hash power decreased by 14%, but similar historical situations are often accompanied by stronger returns.

🚀 Technological innovation and application

· AI-driven Web3 development: Sonic Labs launched the AI platform Spawn, which supports the direct generation, compilation, and deployment of smart contracts and front-end interfaces using natural language, greatly simplifying the DApp development process.

· Ethereum five-year plan: Vitalik Buterin proposed an innovation plan for the next five years, which will involve four major upgrades to enhance performance.

· RWA and AI integration: AIxCrypto collaborates with real estate group Pinnacle to explore the on-chain realization of real estate financial instruments using blockchain and AI technology.

⚠️ Security and risk events

· Infini hacker laundering: Wallets related to the Infini attack exchanged 3,003 ETH (approximately $5.89 million) for 87 WBTC and transferred.

· Discord data breach: Authentication provider Persona was attacked, and users who used Discord authentication may face the risk of information leakage.#比特币挖矿难度上升 $BTC