Transaction through cryptography is most secured anonymity one and it can't be faked or reversed. It's an electronic exchange using technologies such as android or smart phones, debit or credit cards or internet banking. The entire process and account detail of transaction in any of the respected form is managed and taken cared by digital transaction management. It exists in only electronic form and is not tangible like bank notes, coins or dollars but can be easily used for purchasing goods and services. One can make payment without any fees through digital currency. The best thing about virtual money is that no central agency is involved into it. Many companies refer it as a digital money or cyber money. Do invest and trade through cryptography technique but one should always get ready to take chance or risk as well.