The report summarizes what needs to be done (p. 16) as
Education. Deterrence. Detection.That is, students and educators need to be informed about good scientific practice, assessments have to be desiged so as to deter academic misconduct, and universities must act to detect (and sanction) such misconduct when it occurs.
I highly recommend reading this report, including the case studies that document the advertising text used by five essay mills, with price information. It is a sobering read.