Merge pull request #79414 from aliceku/patch-5

adding clarification in first sentence

Author: PRMerger12

articles/sql-database/transparent-data-encryption-azure-sql.md

@@ -15,7 +15,7 @@ ms.date: 04/19/2019
 ---
 # Transparent data encryption for SQL Database and Data Warehouse
 
-Transparent data encryption (TDE) helps protect Azure SQL Database, Azure SQL Managed Instance, and Azure Data Warehouse against the threat of malicious activity. It performs real-time encryption and decryption of the database, associated backups, and transaction log files at rest without requiring changes to the application. By default, TDE is enabled for all newly deployed Azure SQL databases. TDE cannot be used to encrypt the logical **master** database in SQL Database.  The **master** database contains objects that are needed to perform the TDE operations on the user databases.
+Transparent data encryption (TDE) helps protect Azure SQL Database, Azure SQL Managed Instance, and Azure Data Warehouse against the threat of malicious offline activity by encrypting data at rest. It performs real-time encryption and decryption of the database, associated backups, and transaction log files at rest without requiring changes to the application. By default, TDE is enabled for all newly deployed Azure SQL databases. TDE cannot be used to encrypt the logical **master** database in SQL Database.  The **master** database contains objects that are needed to perform the TDE operations on the user databases.
 
 TDE needs to be manually enabled for Azure SQL Managed Instance, older databases of Azure SQL Database, or Azure SQL Data Warehouse.