HOT DEAL OR HOT AIR – Ponzi Schemes Proliferating – The Halachic, legal, and monetary ramifiactions

Is it Loshon Horah to say the name of the perperators?
Is it Mesirah to report such people to the authorities?
What is the proper way to deal with the families of the perpetrators?
What’s the Halachic status of the returns that insvestors received from the swindlers?
Is there a legal requirement to report fraudsters?
How should someone invest?