Encryption — Whole Disk (SWDE)

Updated Whole Disk Encryption Guidance

At the University, Restricted and Prohibited Data must be stored encrypted with central auditing of the encryption status, and the same for Confidential data is strongly recommended (see dataclass.stanford.edu for details).  Whole disk encryption provides a strong layer of privacy protection for stored data, and recent versions of Mac OS X as well as select versions of Windows now provide this capability natively.  

Going forward, Stanford recommends using native (vs. third party) whole disk encryption wherever possible.  To this end, all new systems should be purchased with hardware and operating system versions that support native encryption.  Self-encrypting drives should not be deployed until the system's native encryption can manage the cryptography functionality and its encryption status can be audited. 

Existing Macs should be upgraded to Mountain Lion (OS X v10.8) or later in order to use Apple's native encryption (FileVault).  Many Windows systems already in use can be upgraded in order to use Microsoft's native encryption (Bitlocker).  For existing Windows systems that do not support native encryption, McAfee (a third party encryption software administered by IT Services) is recommended as an interim solution.

The purpose of the Stanford Whole Disk Encryption (SWDE) service is to protect Restricted and Confidential Data that must be stored on faculty and staff computers.

The Stanford Whole Disk Encryption service is for both Windows and Macintosh desktop and laptop computers. This service secures data using standard NIST-approved encryption of the computer hard disk. Once installed, all files are automatically encrypted. The data is protected while the computer is in standby or hibernation mode as long as the hard disk is password protected.

While there is no single solution to protect the university's data, Stanford Whole Disk Encryption protects all data on a hard disk from unauthorized access in the event the computer is lost or stolen. Additional data protection may be needed to reduce risks in other scenarios, such as transferring data from one computer to another.

  • Only those with password access to the system are authorized to access the data, which protects the data if your computer is lost or stolen.
  • Every computer using SWDE automatically checks in with a logging and administrative server on a regular basis. In the event of loss or theft of a computer with Restricted Data, Stanford policy; requires notification of the Information Security Office (ISO). ISO in turn will use the log to determine if a lost or stolen computer is a "reportable" event, possibly requiring notification of persons whose data may have been lost or stolen.
  • In the event you lose or forget your password, the IT Service Desk will assist you in accessing your computer.
  • If necessary, the whole disk can be unencrypted (with the assistance of IT Services to guarantee the integrity of the audit trail).

Getting Started

Unlike the previous iteration of this service, no special sign up is required before making use of this service.

See Getting Started with Stanford Whole Disk Encryption for more information.

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Instructions

For IT Professionals