Thank you, Lao Zheng, for sharing, I learned a lot!

The revolution of private key security: putting "sovereignty" in the mobile phone. Behind the "scan code login" is an end-to-end encrypted tunnel - your private key never leaves the local wallet, DApp only obtains a limited-time authorization (similar to a "business license"), and each transaction requires a second confirmation on the mobile phone. This completely puts an end to the dark era of "mnemonics spreading all over DEX" and truly returns asset control to users.
Invisible bridge for multi-chain interconnection: Let blockchain "cross-border love"
Cross-chain protocol layer: Ethereum wallet ↔ Solana NFT market, Bitcoin wallet ↔ Cosmos DeFi, scan code to connect