According to the privacy statement updated by the blockchain development platform Alchemy in October, when users use its services, information such as account creation, purchases, and communications will be provided directly to Alchemy, and Alchemy may also collect this information. In addition, Alchemy also Personal information such as IP address, user settings, MAC address, cookie identifier, mobile operator, browser or device information, location information, Internet service provider may be collected automatically, and user personal information may also be obtained through third-party services and organizations information. Previously, ConsenSys updated its privacy policy, stating that when a user uses Infura as the default RPC in MetaMask, the corresponding IP address and ETH address will be collected when the user sends a transaction. The founder of Uniswap stated that Uniswap does not track IPs and prevents user IPs from being tracked by third-party APIs.