Using the Encrypting File System
Just as transport information can be encrypted via certificates and PKI, so too can the Resilient File System (ReFS) on Windows Server 2012 be encrypted to prevent unauthorized access. The Encrypting File System (EFS) option in Windows Server 2012 allows for this type of functionality and improves on previous EFS models by allowing offline folders to maintain encryption sets on the server. EFS is advantageous, particularly for laptop users who tote around sensitive information. If the laptop or hard drive is stolen, the file information is worthless because it is scrambled and can be unscrambled only with the proper key. EFS is proving to be an important part of PKI implementations.
Windows BitLocker goes one ...
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