Blackberry 8520 Cell Phone User Manual


 
About content compression
Content compression is designed to reduce the size of your BlackBerry® device data while maintaining the integrity of that data. When content
compression is turned on, your device compresses all device data, including messages, contacts, calendar entries, tasks, and memos. You should
keep content compression turned on.
If content compression and content protection are turned on, your device compresses device data before encrypting it.
Memory cleaning
About memory cleaning
Memory cleaning is designed to delete sensitive data from the temporary memory on your BlackBerry® device. Examples of sensitive data
include sensitive data in the cache for the key store browser, unencrypted data from email messages, LDAP authentication passwords, and
data from certificate and key searches.
When memory cleaning is turned on, the memory cleaning application is designed to delete sensitive data automatically in the following
situations:
when you insert your device in a holster
when you do not use your device for a specified period of time
when you synchronize with your computer
when you change the time or the time zone for your device
when you lock your device
Turn on memory cleaning
1. On the Home screen, click the Options icon.
2. Click Security Options.
3. Click Memory Cleaning.
4. Change the Status field to Enabled.
5. Press the Menu key.
6. Click Save.
Change when your device deletes sensitive data from the temporary device memory
1. On the Home screen, click the Options icon.
2. Click Security Options.
3. Click Memory Cleaning.
4. Perform any of the following actions:
User Guide
Memory cleaning
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