Snowflake operates on a shared responsibility model as a Software-as-a-Service (SaaS) platform. Snowflake is responsible for managing all underlying infrastructure, including hardware, software installation, patches, and updates. The customer's primary responsibility is the data itself. This includes choosing what data to load into Snowflake, performing the loading and unloading operations, managing data transformations, and controlling access to that data through Snowflake's security features.