About the NZSIS – how secret?

I did a search on Google and this was the first hit:

NZSIS - About

And when I clicked on the link:

NZSIS - About link

Very funny.

However they aren’t as secret as that might suggest because this link works : http://nzsis.govt.nz/about-us/oversight/

(I went to the home page of their website, clicked in About and clicked on Oversight).