The dialog box will say that either your computer date is wrong or that your certificate authority has expired. This happens because the digital certificates from VeriSign that are stored in the browsers expired December 31, 1999. These digital certificates, used when you access secure Web sites, are set to expire after several years to limit their vulnerability to attacks from newer, better technology.
Users can get new certificates by upgrading to newer versions of their Web browser of choice.
To upgrade your Netscape Web browser, go to the USYDnet software site and select your platform. You can then download a more current version. If you use an older computer and cannot upgrade your Web browser, or if you prefer not to upgrade, you will still be able to make secure connections. At the dialog box saying the date is wrong or your certificate has expired, click Continue . You will still have an encrypted connection.