MoneyScripts is a discontinued product by Leighton Whiting. We, a group of customers, have decided to take development, maintenance and support on our own due to Leighton's fail to accomplish his compromise.
Note: I created this module for a project in which I needed this, but probably I won't need it again so I hope there is someone who can take over maintenance. The code is pretty trivial though, it should keep working as long as the Drupal permissions API doesn't change.
Drupal is quite talkative in terms of showing off it's content. Often it makes content accessible which we actually don't want to show. That happens for instance very easily, if you're using nodes as content containers only - never really wanting to show the actual node pages of these containers.