This misunderstands what is meant by the concept. The mechanisms and the public policies that dictate how they are used are not obscured. To borrow and improve

This misunderstands what is meant by the concept. The mechanisms and the public policies that dictate how they are used are not obscured. To borrow and improve another commenter's analogy about locks and keys, the lock on your door is more secure because every locksmith in the world knows how it works, which doesn't mean they have your key