There's actually a human who responds to emails for tech support. I had not used the system for about 2 years and wanted to change my correspondence address with CASA but had forgotten my password. But to request your password automatically requires you to answer a 'security question' which was 'name of your significant other'. Since I couldn't remember who my significant other was 2 years ago, I emailed them thinking I'd never get a reply. But lo and behold, they replied after 2 days (not bad for CASA).
As for the security question, couldn't they think of something that's easier to remember than 'name of significant other' such as 'rego of aircraft of your first solo?' .. that's much easier to remember!!