Certificate trust settingsTrusting a certificate means that you authorise it toverify web pages, e-mail servers, software packages,and other data. Only trusted certificates can be used toverify services and software.Important: Even if the use of certificates makesthe risks involved in remote connections and softwareinstallation considerably smaller, they must be usedcorrectly in order to benefit from increased security.The existence of a certificate does not offer anyprotection by itself; the certificate manager mustcontain correct, authentic, or trusted certificates forincreased security to be available. Certificates have arestricted lifetime. If "Expired certificate" or "Certificatenot valid yet" is shown, even if the certificate shouldbe valid, check that the current date and time in yourdevice are correct.Before changing any certificate settings, you mustmake sure that you really trust the owner of thecertificate and that the certificate really belongs to thelisted owner.To change the trust settings, select a certificate andOptions > Trust settings. Select an application fieldand press the scroll key to select Yes or No. You cannotchange the trust settings of a personal certificate.Depending on the certificate, a list of applications thatcan use the certificate is displayed:• Symbian installation — New Symbian operatingsystem application.• Internet — E-mail and graphics.• App. installation — New Java™ application.• Online certif. check — Online certificate statusprotocol.Security modulesSelect Menu > Tools > Settings > General >Security > Security module.View and edit securitymodulesTo view or edit a security module, scroll to it, and pressthe scroll key.To view detailed information about a security module,select Options > Security details.To edit the PIN codes for the security module, selectModule PIN to edit the PIN code for the securitymodule or Signing PIN to edit the PIN code for digitalsignatures. You may not be able to change these codesfor all security modules.The key store contains the contents of the securitymodule. To delete the key store, select Key store,select the desired key store, and Options > Delete.You may not be able to delete the key store of allsecurity modules.Back up dataIt is recommended to back up device memory regularlyto the memory card or a compatible computer. 113 Security and data management
