Awhile ago I wrote this post, The end of the old money and the creation of the new money and I concluded
The money supply is already alot more complicated than it was decades ago. It is going to get even more so. Welcome to the new money.
Turns out that this complication is happening now, according to this: Prepaid cards attract money launderers. I am not surprised crooks are in on this. It’s one thing for Starbucks or even Walmart to create money this way, but it was only a matter of time before it was put to more nefarious uses. And money laundering is only the start of our problems, I suspect.