![]() ![]() ![]() Warning: Data-at-rest encryption does not protect your data from all threats. In addition, data-at-rest encryption can also be used to add some security against unauthorized attempts to tamper with your operating system – for example, the installation of keyloggers or Trojan horses by attackers who can gain physical access to the system while you are away. lost or stolen, as with laptops, netbooks or external storage devices.located in a place to which non-trusted people might gain access while you are away.An unauthorized person looking at the disk contents directly, will only find garbled random-looking data instead of the actual files.įor example, this can prevent unauthorized viewing of the data when the computer or hard-disk is: The files only become available to the operating system and applications in readable form while the system is running and unlocked by a trusted user (data in use or in transit). ![]() Examples for block devices are hard drives, flash drives and DVDs.ĭata-at-rest encryption should only be viewed as an adjunct to the existing security mechanisms of the operating system - focused on securing physical access, while relying on other parts of the system to provide things like network security and user-based access control.ĭata-at-rest encryption ensures that files are always stored on disk in an encrypted form. This article discusses data-at-rest encryption software, which on-the-fly encrypts / decrypts data written to / read from a block device, disk partition or directory. ![]()
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