Airbyte Open Source does not directly support user management or role-based access control (RBAC) as per the [documentation](https://docs.airbyte.com/operator-guides/security). However, for different data sources and destinations, you can create dedicated users with specific permissions. For example, when setting up the Salesforce source connector, you can create a read-only Salesforce user and configure the Salesforce connector through the Airbyte UI. This allows you to granularly control the data Airbyte can read. The detailed steps can be found [here](https://docs.airbyte.com/integrations/sources/salesforce). Similarly, for the Exasol destination, you can create an Airbyte-specific user with specific permissions based on your requirements. The detailed steps can be found [here](https://docs.airbyte.com/integrations/destinations/exasol). For MSSQL, you can create a new user with the relevant CDC access for use with Airbyte. The detailed steps can be found [here](https://docs.airbyte.com/integrations/sources/mssql). For Snowflake, you can create a dedicated read-only user with access to the relevant schemas. The detailed steps can be found [here](https://docs.airbyte.com/integrations/sources/snowflake). Please note that these are specific to the data sources and destinations and not for the Airbyte platform itself.