Security starts at the network architecture level

One of the first decisions to make when establishing a blockchain is the choice between a public blockchain and a private blockchain. Do you want to bring your application to the whole world, or do you want only certain parties to be able to join the network? When implementing an application on a public blockchain like Ethereum, there are already tens of thousands of nodes in the network. This means that your solution will be fully decentralized, and nodes can come and go without the need to operate them yourself. By making it explicitly harder or impossible to do certain things by yourself, then others are likely to trust you more and engage with your application sooner. Also, if your blockchain ...

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