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Lock if SIM card changed — Set the device to ask for the lock code when an
unknown SIM card is inserted into your device. The device maintains a list of SIM
cards that are recognized as the owner’s cards.
Remote phone locking — Enable or disable remote lock.
Closed user group — Specify a group of people to whom you can call and who can
call you (network service).
Confirm SIM services — Set the device to display confirmation messages when
you are using a SIM card service (network service).
Certificate management
Select Menu > Settings and Phone > Phone mgmt. > Security > Certificate
management.
Digital certificates should be used if you want to connect to an online bank or
another site or remote server for actions that involve transferring confidential
information. They should also be used if you want to reduce the risk of viruses or
other malicious software and be sure of the authenticity of software when
downloading and installing software.
Select from the following:
Authority certificates — View and edit authority certificates.
Trusted site certificates — View and edit trusted site certificates.
Personal certificates — View and edit personal certificates.
Phone certificates — View and edit device certificates.
Digital certificates do not guarantee safety; they are used to verify the origin of
software.
Important: Even if the use of certificates makes the risks involved in remote
connections and software installation considerably smaller, they must be used
Settings 173
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