Blackberry ENTERPRISE SOLUTION SECURITY - ENFORCING ENCRYPTION OF INTERNAL AND EXTERNAL FILE SYSTEMS ON DEVICES Manual - Page 6

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Enforcing encryption of internal and external file systems on BlackBerry devices
Users can configure the following options to turn on encryption of stored files on their supported BlackBerry
devices.
Internal files
Turn on the Content
Protection option
(Options > Security
Options > General
Settings).
For more information about how BlackBerry devices can encrypt stored data, see the BlackBerry Enterprise
Solution Security Technical Overview.
©
2008 Research In Motion Limited. All rights reserved.
External files
1.
Turn on Media Card Support (Options >
Media Card or Options > Memory > Media
Card Support).
2.
Set the encryption mode for the external file
system. The BlackBerry device encrypts files
stored in the /BlackBerry/documents/ folder
and any user-created folders on the media
card.
3. Choose whether to encrypt media files in
external memory only on the device.
•
BlackBerry Device Software version 4.7 or
later: If you set the Encrypt Media Files
option to Yes, the BlackBerry device
encrypts all files that have an audio,
image, or video MIME type, excluding
OMA DRM file types (.dcf, .odf, .o4a and
.o4v).
•
BlackBerry Device Software version
earlier than 4.7: If you set the Encrypt
Media Files option to Yes, the BlackBerry
device encrypts files according to the
folders they are stored in on the media
card (/BlackBerry/videos/,
/BlackBerry/music/,
/BlackBerry/pictures/,
/BlackBerry/ringtones/ and
/BlackBerry/voicenotes/).
Note: The BlackBerry device does not encrypt files
transferred using USB while the Mass Storage
Mode Support option is turned on, or OMA DRM
files. OMA DRM files are protected using the OMA
DRM standard.
www.blackberry.com
Master encryption keys
This option is not available
for control by BlackBerry
device users.