For a simple security check, the Secure property can determine
if a page was retrieved using a secure, encrypted connection. If the property
returns True, it means a secure connection was used and there were no
problems with the server's certificate (e.g., the domain names match
and the certificate hasn't expired). It is effectively the same as checking
for a security level greater than webSecurityLevelNeutral.
For more detailed information about a secure connection, check the
value of the Certificate and Encryption properties.