Credit search service in BR?

Hi,

I have a two part question I hope someone might be able to go guide me.. I was just wondering if there is such a service that you could request a report on your credit status or look up items that are linked to your name - something similar to Equifax? 

Secondly, I know that the CPF may contain this type information, and access to this is quite openly available to store clerks etc but how do I as the owner of the CPF (if I actually do own it) check the contents and verify that what is listed is right and exact?  And can it be protected against fraudulent activity?  Is there somewhere online to view as a report?  And can anyone view anyone else's CPF content?

I am trying to get a sense on how building credit works and whether the process is similar to America or Europe aswell as protection.

Hope this makes sense.