Nokia 6233 User Manual

Also see for 6233 - Cell Phone 6 MB: Specification sheet User guide User guide User guide Service manual

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Nokia 6233 User Manual Manual pdf 91 page image

W e b90 Copyright © 2006 Nokia. All rights reserved.the browser only after you selectRetrieve when the phone hasreceived a service message.■ Cache memoryA cache is a memory location thatis used to store data temporarily. Ifyou have tried to access or haveaccessed confidential informationrequiring passwords, empty thecache after each use. Theinformation or services you haveaccessed is stored in the cache.To empty the cache whilebrowsing, select Options > Otheroptions > Clear the cache; in thestandby mode, select Menu >Web > Clear the cache.■ Browser securitySecurity features may be requiredfor some services, such as onlinebanking or shopping. For suchconnections you need securitycertificates and possibly a securitymodule, which may be availableon your SIM card. For moreinformation, contact your serviceprovider.Security moduleThe security module improvessecurity services for applicationsrequiring a browser connection,and allows you to use a digitalsignature. The security modulemay contain certificates as well asprivate and public keys. Thecertificates are saved in thesecurity module by the serviceprovider.To view or change the securitymodule settings, select Menu >Settings > Security > Securitymodule settings.CertificatesImportant: Even if the useof certificates makes therisks involved in remoteconnections and softwareinstallation considerablysmaller, they must be usedcorrectly in order tobenefit from increasedsecurity. The existence ofa certificate does not offerany protection by itself;the certificate managermust contain correct,authentic, or trustedcertificates for increasedsecurity to be available.Certificates have arestricted lifetime. IfExpired certificate orCertificate not valid yet isshown even if thecertificate should be valid,check that the current