143Copyright © 2003 Nokia. All rights reserved.• Module PIN request to set the phone to ask for the module PIN code whenusing services provided by the security module. Key in the code and select On.To disable this request, select Off.• Change module PIN to change the module PIN code, if allowed by the securitymodule. Enter the current module PIN code and then enter the new code twice.See also Access codes on page 15.CertificatesThere are three kinds of certificates: server certificates, authority certificates anduser certificates.To view the available certificates, press Menu in standby mode and selectServices, Settings, Security settings and User certificates or Authority certificates.• Server certificatesThe phone uses a server certificate to improve security in the connectionbetween the phone and the gateway. The phone receives the server certificatefrom the service provider before the connection is established and its validity ischecked using the authority certificates saved in the phone. Server certificatesare not saved.The security indicator is displayed during a connection, if the datatransmission between the phone and the Internet server is encrypted.However, the security indicator does not indicate that the data transmissionbetween the gateway and the content server (place where the requestedresource is saved) is secure. It is up to the service provider to secure the datatransmission between the gateway and the content server.