How does fabrication differ from just making a mistake? What are the potential consequences of fabrication for both the reporter and the news outlet?

To put it simply fabrication is another word for lying so it obviously differs from making a simple mistake. Depending On what was lied about the news outlet Could be sued prosecuted or shut down completely

A mistake is something that was done accidentally, fabrication means lying and lying is usually directed or intentional. The consequences of fabrication can differ for different types of lies. If the lie was targeted to hurt a specific person and someone finds that out the person targeted can be very upset. So TLDR fabrication is on purpose and mistakes are accidental. hope this helps!!