FIO Protocol | 8,159 followers on LinkedIn. FIO Protocol is the #1 decentralized digital identity solution for Web3. One customizable name for all your wallets. | FIO Protocol (FIO) is a decentralized, open-source usability solution that enables easier cryptocurrency transactions on all blockchains by replacing complex wallet addresses with a single, customizable, and human-readable Handle in the format of username@domain. FIO Handles can be used to send, receive, and request any type of cryptocurrency as easily as sending an email. FIO Protocol’s mission is to make cryptocurrency easy to use across every type of token and coin by removing the opportunity for human error when transacting with long-string wallet addresses on different blockchains and network types.