Nokia N82 black User Guide - Page 152

Certificate management, phone, Lock if SIM card changed, Closed user group, Confirm SIM services

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Settings Tip: To lock the device manually, press the power key. A list of commands opens. Select Lock phone. ● Lock if SIM card changed - You can 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 recognised as the owner's cards. ● Closed user group - You can specify a group of people to whom you can call and who can call you (network service). ● Confirm SIM services - You can set the device to display confirmation messages when you are using a SIM card service (network service). Certificate management Press , and select Tools > Settings > General > Security > Certificate management. Digital certificates do not guarantee safety; they are used to verify the origin of software. In the certificate management main view, you can see a list of authority certificates that are stored in your device. Scroll right to see a list of personal certificates, if available. 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. Important: Even if the use of certificates makes the risks involved in remote connections and software installation considerably smaller, they must be used correctly in order to benefit from increased security. The existence of a certificate does not offer any protection by itself; the certificate manager must contain correct, authentic, or trusted certificates for increased security to be available. Certificates have a restricted lifetime. If "Expired certificate" or "Certificate not valid yet" is shown even if the certificate should be valid, check that the current date and time in your device are correct. Before changing any certificate settings, you must make sure that you really trust the owner of the certificate and that the certificate really belongs to the listed owner. View certificate details-check authenticity You can only be sure of the correct identity of a server when the signature and the period of validity of a server certificate have been checked. You are notified if the identity of the server is not authentic or if you do not have the correct security certificate in your device. 152 © 2008 Nokia. All rights reserved.

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Tip:
To lock the device manually, press the power
key. A list of commands opens. Select
Lock
phone
.
●
Lock if SIM card changed
— You can 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 recognised as the owner’s cards.
●
Closed user group
— You can specify a group of
people to whom you can call and who can call you
(network service).
●
Confirm SIM services
— You can set the device to
display confirmation messages when you are using a
SIM card service (network service).
Certificate management
Press
, and select
Tools
>
Settings
>
General
>
Security
>
Certificate management
.
Digital certificates do not guarantee safety; they are used
to verify the origin of software.
In the certificate management main view, you can see a
list of authority certificates that are stored in your device.
Scroll right to see a list of personal certificates, if available.
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.
Important:
Even if the use of certificates makes the
risks involved in remote connections and software
installation considerably smaller, they must be used
correctly in order to benefit from increased security. The
existence of a certificate does not offer any protection by
itself; the certificate manager must contain correct,
authentic, or trusted certificates for increased security to
be available. Certificates have a restricted lifetime. If
"Expired certificate" or "Certificate not valid yet" is shown
even if the certificate should be valid, check that the
current date and time in your device are correct.
Before changing any certificate settings, you must make
sure that you really trust the owner of the certificate and
that the certificate really belongs to the listed owner.
View certificate details—check authenticity
You can only be sure of the correct identity of a server
when the signature and the period of validity of a server
certificate have been checked.
You are notified if the identity of the server is not
authentic or if you do not have the correct security
certificate in your device.
Settings
© 2008 Nokia. All rights reserved.
152