We're seeing more fraud attempts that originate from Venezuela and Mexico lately. These differ from the ham fisted African scams we've known for years.
The Latin American frauds are smaller in dollar amount and look more like normal orders. Ship-to's tend to be Miami transshippers or border city PO boxes.
Unlike the Africans who have been burned by scam-baiters, Latin crooks are persistent. We had one email about 7 times trying to get $250 worth of goods next-day-air'd to him. He phoned us twice. He was also persistent in asking why we had rejected his order (which had every red flag in the book). I think he wanted to refine his technique.
For us ecommerce sellers there is a huge difference: When we get the obvious African attempts, we just hit Delete. The Latin American orders take a lot of research to approve or reject.