What does the message Security Alert: The security certificate has expired or is not yet valid mean?
If you’re using an old version of a browser, this message may appear, suggesting that our site’s security certificate is not valid. This is not true. Changes to the technology used by Verisign, the issuer of our security certificate, mean that older versions of some browsers are unable to read updated certificates. If you are getting this alert then we suggest you update your browser.