This is also known as match fixing if I understand the OP clear enough, I am not surprised by the way, this is something that have existed for as long as gambling and betting itself, I am really not happy to say that such problems as this will never find a long lasting solution, there can never be a time when matching rigging, as well as fixing would be completely eradicated from our system, we can only try to manage it, that is reduce it, its something that have been since of old, and will continue even unto the unforeseen future.
This is not something peculiar to brazil alone, it is present in every country.
Yes, it was clear that this was a match fixing. even though they have unique ways that are also different, basically in essence all of them aim to rig the results of a match. referring to the source of the link that the OP shared, the actor of the main culprit has been arrested. in this case, I don't really understand how the betting fraud works and the mechanism they run.
practices like these, however, are nothing new to us. and as you said, this is not something that only happens in Brazil, but it can happen in many countries, especially developing countries. there are various ways and modes, in match fixing practices. but what is certain, practices like this can occur because of a bad system and weak regulations, so that it can be exploited by elements or parties who are not responsible.
