diff --git a/source/core/security-introduction.txt b/source/core/security-introduction.txt
index fae1b9fbc78..4df213a7127 100644
--- a/source/core/security-introduction.txt
+++ b/source/core/security-introduction.txt
@@ -85,20 +85,34 @@ See :doc:`/tutorial/configure-ssl` for more information.
 Encryption at Rest
 ~~~~~~~~~~~~~~~~~~
 
-MongoDB has a partnership with Gazzang to encrypt and secure sensitive
-data within MongoDB. The solution encrypts data in real time, and Gazzang
-provides advanced key management that ensures only authorized processes
-can access this data. The Gazzang software ensures that the cryptographic
-keys remain safe and ensures compliance with standards including HIPAA,
-PCI-DSS, and FERPA.
+There are two broad classes of approaches to encrypting data at rest with
+MongoDB, which can be used independently or in concert:
 
-For more information on the partnership, refer to the following resources:
+One option is to provide encryption on a per-field or per-document basis within
+the application layer, either by writing custom encryption and decryption
+routines or by making use of commercial solutions such as the `Vormetric Data Security Platform <http://www.vormetric.com/sites/default/files/sb-MongoDB-Letter-2014-0611.pdf>`_.
 
-- `Partnership <https://www.mongodb.com/partners/technology/gazzang>`_
+The other is to use one of a number of third-party libraries that integrate with
+the operating system to provide transparent disk-level encryption that ensures
+that only authorized processes can access protected data. Examples of such
+solutions include:
 
-- `Datasheet <http://www.gazzang.com/images/datasheet-zNcrypt-for-MongoDB.pdf>`_
+- Linux Unified Key Setup (LUKS), which is available for most Linux
+  distributions and whose configuration is illustrated in `documentation from
+  Red Hat <https://access.redhat.com/site/documentation/en-US/Red_Hat_Enterprise_Linux/6/html/Security_Guide/sect-Security_Guide-LUKS_Disk_Encryption.html>`_,
 
-- `Webinar <http://gazzang.com/resources/videos/partner-videos/item/209-gazzang-zncrypt-on-mongodb>`_
+- `IBM Guardium Data Encryption <http://www-03.ibm.com/software/products/en/infosphere-guardium-data-encryption>`_, which provides support for disk-level
+  encryption under both the Linux and Windows operating systems,
+
+- The aforementioned `Vormetric Data Security Platform <http://www.vormetric.com/sites/default/files/sb-MongoDB-Letter-2014-0611.pdf>`_, which also provides
+  disk- and file-level encryption, and
+
+- `Bitlocker Drive Encryption <http://technet.microsoft.com/en-us/library/hh831713.aspx>`_, a feature available on Windows Server 2008 and 2012 that provides
+  disk encryption.
+
+Properly configured disk encryption, when used alongside good security policies
+that protect relevant accounts, passwords, and encryption keys, can help ensure
+compliance with standards such as HIPAA, PCI-DSS, and FERPA.
 
 Hardening Deployments and Environments
 --------------------------------------