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• connecting to an online bank or another site or remote
server for actions that involve transferring confidential
information
• reducing the risk of viruses or other malicious software
and checking the authenticity of software when
downloading and installing it
Important: Note that 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.
Fig. 31: Certificate manager
To view certificate details, double-tap a certificate.
To delete a certificate, tap Delete.
To define the usage of the certificate, double-tap a
certificate and tap
Trust
following:
SIS installation:
— Select this check box, if you want this
certificate to be able to certify the origin of a new SIS
software.
Application installation:
- Select this check box, if you want
this certificate to be able to certify the origin of a new
java software.
Web and e-mail:
— Select this check box, if you want this
certificate to be able to certify web sites and mail-
servers.
settings. Define the
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