Não sei se isto é novo ou não, mas foi a primeira vez que aconteceu comigo pelo Mercado Livre então irei descrever o caso.
Coloquei um PSP a venda e recebi uma pergunta de um usuário em inglês.
Ele perguntava se seria possível enviar meu item do Brasil para um sobrinho que morava na Nigéria, para ser um presente de aniversário.
Entrei em contato e disse que sim, e perguntei como ele iria efetuar o pagamento, sugeri o bom e velho paypal.
Ele disse que pagaria por transferência bancária, dizendo que o banco dele poderia fazer transações diretamente para o meu aqui no Brasil e em Reais.
Eu respondi que tudo bem, e passei o nome do banco e conta para ele. Até aí eu já estava meio desconfiado, mas omiti o nome completo e dados como cpf ou rg. Mas ainda assim me arrependo de ter enviado os dados da conta, foi bobeira minha.
Hoje recebi um e-mail dele me dizendo que a transferência havia sido efetuada e que o banco dele iria me mandar um e-mail com os dados da transação, PORÉM, para que houvesse a liberação do dinheiro em minha conta, eu precisava enviar um e-mail de confirmação para o banco dele, com os dados do envio e o número de rastreamento da encomenda. Isso deixou o golpe nítido como como uma lente de cristal. Qual vendedor que se preze envia um item para alguém que nunca viu sem receber antes o devido pagamento e ainda mais em outro país?
Respondi ao e-mail dele dizendo que não recebi confirmação alguma e apenas enviaria o pacote se recebesse o pagamento adiantado e de preferência por paypal.
A vontade que dá era de enviar uma bomba no lugar do psp, pena que é proibido.

Segue abaixo o nome usado no e-mail e as mensagens que ele me enviou:
Richard Ramirez
Email 1:
Hello, thanks for replying, I am interested in buying this product for my nephew that is studying in Africa and I will pay you through bank transfer. This is the shipping address, so that you can calculate the shipping cost through Correios (http://www.correios.com.br):
Name : Abidemi Idris
Address : 10 Alafia street, Eleyele
City : Ibadan
State: Oyo
Country : Nigeria
Zipcode : 00000 (They don't use zipcodes)
I want you to remove the product from mercadolivre and let me know the total amount including the shipping cost, and your bank information for the transfer, so that I can make the transfer to your account as soon as you provide the information. My bank can make international transfers in your currency, so you don't have to worry. Let me know the condition of the product.
I am waiting for your answer.
Email2
OK, I will contact my bank to make the transfer to your account and let you know when it is completed.
Email3
Hello, I have completed the transfer online and I have received the
approval and transfer confirmation email from the bank, and they said
they have also sent a copy to your email, so check your email and spam
folder and and let me know if you received the confirmation. Your
payment is already with the bank and according to the instructions, it
will be pending, until you make the shipment and send the proof of
shipment to them, to ensure the security on both sides the bank is
handling the transaction by acting as a third party. Make sure you
ship the product and send the shipping tracking number to the bank as
soon as you can, so that they can liberate the payment in your account
immediately since the payment has already been debited to my account.
I will be expecting your email also as soon as you make the shipment,
I want you to declare a small value for the product, so that there
won't be any problem with the customs.
Regards.
Email do suposto banco:
Dear Valued Client,
This is to remind you about the recent payment requested to be transferred to your bank account b y the buyer of your item, we have already sent you a confirmation of the transfer immediately we received the full payment on your behalf and it is ready to be transferred to your bank account, but you have to make the shipment and send the shipping tracking number to us, so that we can verify the shipment with the shipping company and then we shall liberate the payment and deposit the full payment on your bank account immediately. This system is being used to protect both the buyer and seller from any type of fraudulent activities, that is why the bank is monitoring the transaction and is in compliant with the FBI Customer Protection System.
You are required to send the item to the buyer's address and send the shipping tracking number to us at: transfers@wachovia-cust.com , and we shall release the payment to your account as soon as we confirm the shipment with the shipping company.
Thank you for using Wachovia Online Transfer, feel free to contact us if you have any question/comment about this transaction.
***NOTE THAT ALL TRANSACTIONS ARE BEING MONITORED BY THE FBI TO ENSURE THAT THERE IS NO FRAUDULENT ACTIVITY***.
Sincerely,
Wachovia Financial Group.