Nokia N72 User Manual

Contents

Nokia N72 User Manual Manual pdf 100 page image

Tools100 Copyright © 2006 Nokia. All rights reserved.code is blocked, and you need to unblock it before you canuse the SIM card again. See the information about thePUK code in this section.PIN2 code—This code (4 to 8 digits) is supplied with someSIM cards, and is required to access some functions inyour device.Lock code (also known as security code)—This code (5digits) can be used to lock the device to avoidunauthorized use. The factory setting for the lock code is12345. To avoid unauthorized use of your device, changethe lock code. Keep the new code secret and in a safeplace separate from your device.Personal unblocking key (PUK) code and PUK2 code—These codes (8 digits) are required to change a blockedPIN code or PIN2 code, respectively. If the codes are notsupplied with the SIM card, contact the operator whoseSIM card is in your device.Certificate managementDigital certificates do not guarantee safety; they are usedto verify the origin of software.Glossary: Digital certificates are used to verify theorigin of the XHTML or WML pages and installedsoftware. However, they can only be trusted if theorigin of the certificate is known to be authentic.In the certificate management main view, you can see alist of authority certificates that are stored in your device.Press to see a list of personal certificates, if available.Digital certificates should be used if you want to connectto an online bank or another site or remote server foractions that involve transferring confidential information.They should also be used if you want to reduce the risk ofviruses or other malicious software and be sure of theauthenticity of software when downloading and installingsoftware.Important: Even if the use of certificates makes therisks involved in remote connections and softwareinstallation considerably smaller, they must be usedcorrectly in order to benefit from increased security. Theexistence of a certificate does not offer any protection byitself; the certificate manager must contain correct,authentic, or trusted certificates for increased security tobe available. Certificates have a restricted lifetime. IfExpired certificate or Certificate not valid yet is showneven if the certificate should be valid, check that thecurrent date and time in your device are correct.View certificate details—check authenticityYou can only be sure of the correct identity of a serverwhen the signature and the period of validity of a servercertificate have been checked.