Foreign Currency Market

How can you invest in foreign currencies? What element do we have to protect ourselves from the risks that we have while investing on foreign currencies?. There is an option to invest on foreign currencies called term arrangement (forward), this is very similar to the arrangement of future of foreign currencies as they are both arrangements of purchase and sale of an asset at a certain moment in the future for a certain price. The term arrangements are arrangements negotiated at the market and are carried out between two financial entities or between a financial entity and a client. The term operations or forward are those whose delivery or reception of the quantity of currency is done in a longest term than two week days after doing the operation.
Suppose a client that has 20.000 euros and deposit an amount of euros at a term of a month or thirty days at an interest annual rate of the 5%. In this occasion with this kind of arrangement the client has an initial investment in foreign currencies and receives a reward because of depositing his foreign currencies at a financial institution. This is one of the safest way of foreign currencies investment as the only risk that you have is if both parts do not carry out their obligations, but this situation is very weird to have it.