I know there is a lot of xenophobia in the US, but Nigerian scams really do still mostly
come from Nigeria and Nigerians abroad.
Even the Nigerian government admits it is a big problem for them. Imagine being a legitimate business based in Nigeria and trying to do business abroad.
The non-racial term for the Nigerian scams is "advance fee scams
" or "advance fee fraud", because they are scamming you with an advance fee for something that never appears. They are also called 4-1-9 scams, but that is still racist because it refers to the part of Nigerian penal code that is broken by these scams.
(Virus&Hijacking FAQ + Submit suspected malware + Backups FAQ + Security FAQ TOC)