Even though the primary purpose of Blockchain is to provide users with block exploration services, the company has since grown and expanded vastly. Instead, bitcoin or its key should be stored in a secure wallet such as one that uses a multi-signature facility for security. Cryptocurrency A cryptocurrency is a digital or virtual currency that uses cryptography and is difficult to counterfeit because of this security feature. He also notes that when starting as a fintech company, you should start by taking small steps and not going way over your head. Buy Bitcoin Worldwide does not offer legal advice.