Nokia 6151

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Copyright © 2006 Nokia. All rights reserved.
■ Browser security
Security features may be required 
for some services, such as online 
banking or shopping. For such 
connections you need security 
certificates and possibly a security 
module, which may be available on 
your SIM card. For more information, 
contact your service provider.
Security module
The security module improves 
security services for applications 
requiring a browser connection, and 
allows you to use a digital signature. 
The security module may contain 
certificates as well as private and 
public keys. The certificates are 
saved in the security module by the 
service provider.
To view or change the security 
module settings, select 
Menu
> 
Settings
> 
Security
> 
Security 
module settings
. 
Certificates
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.
There are three kinds of certificates: 
server certificates, authority 
certificates, and user certificates. 
You may receive these certificates 
from your service provider. Authority 
certificates and user certificates may 
also be saved in the security module 
by the service provider.
To view the list of the authority or 
user certificates downloaded into 
your phone, select 
Menu
> 
Settings
> 
Security
> 
Authority 
certificates
 or 
User certificates
.
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