Azure Databricks allows you to store your confidential information (e.g., credentials) in notebooks or jobs which you can retrieve later via referencing them. A secret in Azure Databricks refers to a key-value pair that contains some secret information. This secret information has a unique key name inside a secret scope. A maximum of 1000 secrets can be stored in one secret scope, and each secret can be a maximum of 128KB. Secret names are not case-sensitive. A secret can be referred to using a Spark configuration property or a valid variable name. You can create secrets using the CLI and REST API. Before creating a secret, you must consider which secret scope you are using. The process of creating a secret varies for different secret scopes. You can read a secret using the Secrets utility in a job or notebook.