As Transparent Data Encryption encrypts data “on the fly” it showed performance issues resulting in significantly increased CPU usage during the e.g. TDE protects the database against unauthorized access to the hard disks or backups on which a database is stored.
SQL Server 2008 introduced Transparent Data Encryption (TDE) that enables encrypting of an entire database. SQL Server offers two ways of encrypting data: Encryption is the process of obfuscating data with the use of a key and/or password making the data unintelligible to anyone without a corresponding decryption key or a password. A database is one of the most important parts of every information system and therefore is an often target of hackers.
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