Nokia 6131 NFC

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■ Cache memory
A cache is a memory location that is used to store data temporarily. If you have 
tried to access or have accessed confidential information requiring passwords, 
empty the cache after each use. The information or services you have accessed is 
stored in the cache.
To empty the cache while browsing, select 
Options
> 
Other options
> 
Clear the cache
; in the standby mode, select 
Menu
> 
Web
> 
Clear the 
cache
.
■ 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.
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