Samsung Galaxy S III User Manual page 188

Security
From the Settings screen, under Personal, touch
Security. The Security screen displays.
Encryption
As a security measure, you can encrypt the contents of the
phone or an installed memory card, and require a password
each time you turn on the phone or access the memory card.
Encryption may take an hour or more to complete. Start with
a charged battery, and attach the charger until encryption is
complete. Loss of power or other interruption may cause the
loss of some or all data.
Once your information is encrypted you are prompted to
enter your decryption password each time you turn the
phone on.
From the Security screen, under Encryption, touch the
following options to encrypt your information:
• Encrypt device: Touch this option to encrypt accounts,
settings, downloaded applications and data, media files, and
more under a password you specify.
• Encrypt external SD card: Touch this option to encrypt
selected information stored on a microSD memory card under
a password you specify. The following additional Encryption
settings are available:
–
Encrypt: When enabled, new files on the memory card are
encrypted as they are added.
–
Full encryption: When enabled, all files on the memory card
are encrypted.
–
Exclude multimedia files: When enabled, multimedia files on
the memory card are not encrypted.
Settings 183