usually involves this scheme: the scammers upload fake attractive photos, in most cases of white people.
They pretend to be the foreign specialists working in Nigeria or Ghana (usually originally from US and UK, but it may also be Canada, Australia or any other European country).
The Nigerian Advance Fee Scheme (also known internationally as “4-1-9” fraud after the section of the Nigerian penal code which addresses fraud schemes) is generally targeted at small and medium sized businesses, as well as charities.
Nigerian scam comes in many forms: 419 scam, when they offer to transfer millions of dollars into your bank account, or lottery scam, when they tell you that you've won something in some bogus lottery.
However, Nigerian dating scam (or romance scam), besides just asking for money for their studies, sick relatives, etc..
This global scam (recently seen in Russia, Southeast Asia, Australia, and New Zealand, as well as the US) involves the receipt of an unsolicited letter purporting to come from someone who claims to work for the Nigerian Central Bank or from the Nigerian government.
(The Central Bank of Nigeria denies all connection to those who promote this scheme.) In the letter, a Nigerian claiming to be a senior civil servant will inform the recipient that he is seeking a reputable foreign company into whose account he can deposit funds ranging from - million which the Nigerian government overpaid on some procurement contract.