Security Sample App?

I've been looking for the 'Security Sample App' listed on:
Anyone know where I can find it?

By the way, has anyone written or know of a more detailed explanation
of defining security rules? The docs for it are way to
simplified. How do you handle nested handlers? Hand1\Hand2\event, how
do you define 'if the handler starts with admin AND the event starts
with delete'?

Try forgebox…