FIS is StaFi's native token powering rapid, secure transactions. Like DOT to Polkadot, FIS prevents abuse and maintains ecosystem value. It's vital across StaFi: validators stake for network access, nominators earn with FIS, transactions require FIS for resource access, preventing abuse. FIS holders shape StaFi via governance, engage in value creation through rTokens. Co-founders Liam Young and Tore Zhang envision cross-chain DeFi ease via secure rTokens. FIS on Polkadot Substrate excels in cross-chain, linking Ethereum, StaFi Hub, and more.