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phone activates the browser only after you select Retrieve when the phone hasreceived a service message.Browser securitySecurity 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 serviceprovider.To view or change the security module settings, select Menu > Settings > Security >Security module sett..CertificatesWebImportant: Even if the use of certificates makes the risks involved in remoteconnections and software installation considerably smaller, they must be used correctlyin order to benefit from increased security. The existence of a certificate does not offerany protection by itself; the certificate manager must contain correct, authentic, ortrusted certificates for increased security to be available. Certificates have a restrictedlifetime. If "Expired certificate" or "Certificate not valid yet" is shown, even if thecertificate should be valid, check that the current date and time in your device arecorrect.There are three kinds of certificates: server certificates, authority certificates, and usercertificates. You may receive these certificates from your service provider. Authoritycertificates and user certificates may also be saved in the security module by your serviceprovider.To view the list of the authority or user certificates downloaded to your phone, selectMenu > Settings > Security > Authority certificates or <strong>User</strong> certificates.During a connection if the data transmission between the phone and the content serveris encrypted, is displayed.The security icon does not indicate that the data transmission between the gatewayand the content server (or place where the requested resource is stored) is secure. Theservice provider secures the data transmission between the gateway and the contentserver.Digital signatureYou can create digital signatures with your phone if your SIM card has a security module.The digital signature is the same as signing your name to a paper bill, contract, or otherdocument.To create a digital signature, select a link on a page, for example, the title of the bookyou want to buy and its price. The text to be signed is shown and may include theamount and date.© 2007 <strong>Nokia</strong>. All rights reserved. 45
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