cryptocurrency is a digital or virtual currency that uses ryptography for security and operates independently of a entral bank. Its decentralized nature allows for secure and transparent transactions, making it an appealing alternative to traditional fiat currencies. Cryptocurrencies uses block chain technology, which is a distributed ledger that records all transactions on a network of computers. Bit coin was the first cryptocurrency to gain widespread attention, but today there are thousands of different crypto currencies with varying degrees of popularity and acceptance. Despite their potential benefits, cryptocurrencies are subject to volatility, regulatory uncertainty, and security risks, which have led to debates about their future role in the global economy. In this paper we are going to discuss different fraud prospects in cryptocurrency investment faces by users. Here we are listed possible scams happened in past and possibilities in future with cryptocurrency fund. Even we tried to discuss recent available detection & prevention methods for such scams. With the help of our future research perspective we are planning to provide technique to prevent such different scams and saving our valuable money.