The most common type of advance fee fraud is for a fraudster to approach a company or sovereign state which has a poor credit rating or which is in some financial difficulty and offer to obtain funding at beneficial rates. Likewise, a potential investor may be approached and offered the opportunity to invest in a transaction with a very high rate of return. In each instance, the borrower or investor will be asked to provide some funds up front to cover the costs of setting up the transaction or by way of a deposit or down payment on fees. Once the fee has been paid, the fraudster will disappear and the transaction will, on further investigation, prove to be fictitious.