Public blockchains emphasize transparency, but users are increasingly concerned about privacy—this contradiction is in front of us. The Walrus protocol aims to build a dedicated "private data layer" on Sui, a high-performance first layer, to reconcile this contradiction.

In simple terms, Walrus is not just another ordinary privacy DeFi tool; it aspires to become the standard infrastructure for Web3 applications handling sensitive assets and information.

**Why is this needed?** Traditional DeFi operates on fully transparent ledgers, revealing your asset movements, holdings, and trading strategies. This directly leads to issues like sandwich attacks, strategy copying, and targeted attacks on large holders—you know how common these problems are. Looking at NFT, GameFi, SocialFi applications, their core data still needs to be hosted on centralized servers like AWS. Doesn't this conflict with the concept of "decentralized asset ownership"? It introduces single points of failure and censorship risks.

**How to solve it?** Walrus addresses this with two key pillars: first, a privacy transaction module based on advanced cryptography like zero-knowledge proofs; second, a decentralized storage network based on erasure coding. This allows "private assets" and "private data" to be managed uniformly on-chain.

**Why choose Sui?** Sui's object-centric model and high throughput enable Walrus to build efficiently natively on it. This is not a casual choice but a carefully considered one.