$UNI $BNB The privacy sector’s market performance in 2025 has drawn renewed attention to on-chain privacy. Market trends don’t tell the whole story, but they raise a question worth considering: Beyond performance and ecosystem growth, what kind of privacy protection will blockchains need in the future? STAK Chain is focused on this area, and SAK’s development is also worth assessing in light of its practical use cases and ecosystem progress.#sak