![]() ![]() TDE protects data at rest, which is the data and log files. It's secured by a certificate that the server's master database stores or by an asymmetric key that an EKM module protects. ![]() The database boot record stores the key for availability during recovery. The encryption uses a database encryption key (DEK). TDE does real-time I/O encryption and decryption of data and log files. But you must plan this kind of protection in advance. ![]() This solution prevents anyone without the keys from using the data. One solution is to encrypt sensitive data in a database and use a certificate to protect the keys that encrypt the data. However, a malicious party who steals physical media like drives or backup tapes can restore or attach the database and browse its data. Building a firewall around the database servers.To help secure a user database, you can take precautions like: This encryption is known as encrypting data at rest. Transparent data encryption (TDE) encrypts SQL Server, Azure SQL Database, and Azure Synapse Analytics data files. Applies to: SQL Server Azure SQL Database Azure SQL Managed Instance Azure Synapse Analytics Analytics Platform System (PDW) ![]()
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