User authentication for the portal uses HTTPS, which uses Secure Sockets Layer (SSL) for posting the user names and passwords that users enter in an encrypted form over a secure channel. SSL and HTTPS rely on the usage of digital certificates, which are typically verified and signed by third-party trusted authorities.
Unwired Accelerator uses a certificate that is created using the keytool utility that ships with Java Development Kit (JDK) 1.4.x. This certificate is not signed by any trusted authority; therefore, you see the Security Alert pop-up when you sign in with your user name and password. Replace the .keystore file in the product folder with your certificate file of the same name.