Blockchain is considered to be a significant revolution as it impacts our way of transferring data and units of value. All in total transparency. In short, the Blockchain is a public « chain » that records all the transactions that are made within the network. Each transaction is unique and therefore can not be diverted or duplicated allowing secure and secure transactions. It is also based on a cryptographic system, offering it a solid security that is effective. We are already witnessing a very strong adoption of this technology in several sectors. Cryptocurrencies are digital assets that are secured by this technology.