FraudLabs Pro screens an order/transaction for fraud traits and returns a fraud score associated with that order.
The fraud screening process does not decide the next course of action to be taken. This is why you need the validation
rules to instruct the system on the desired action, such as Approve, Reject or
Put on Review based on the validation result.
This is also the reason why the 5 validation rules are assigned to your profile during the initial plan sign up.