Sui Network recently made a major move—planning to implement Layer-1 level private transaction capabilities by 2026. This is not just a cherry on top, but a strategic breakthrough under the dual pressures of quantum computing and regulation.

In simple terms, Sui aims to create an "Invisible Wallet" system that makes transaction records completely private, so much so that even network nodes cannot trace the flow of funds. This is a boon for crypto users—currently, most transfers on public blockchains can be easily traced back to specific addresses.

Why the urgency? The pressure mainly comes from two directions. First is the future threat of quantum computing. Once quantum computers become widespread, existing cryptographic algorithms could be cracked instantly, potentially exposing privacy coin addresses. Second is the tightening regulation—governments worldwide are increasingly scrutinizing on-chain fund flows, with Tornado Cash sanctions being a vivid example.

From a competitive perspective, Sui is vying with established privacy coins like Monero and Zcash. However, Sui has a natural advantage—as a Layer-1 public chain, its transaction throughput can surpass its competitors. But the obvious question remains: can they really develop quantum-safe algorithms by 2026? Currently, Sui is still in the PoS consensus stage, and technical challenges are significant; delays are common.

If this project truly succeeds, the SUI token could become a new favorite in the privacy payment sector, but only if it can capture market share from other public chains. At the same time, several risks should be watched: the commercial viability of quantum computing remains uncertain, regulators might outright ban privacy transactions, and the technical complexity could lead to development delays.