Unlike user data of traditional AWS-based applications, records of DApp users are kept on a public, decentralized ledger and are immutable. Users can interact with the distributed codes of DApps to create or modify their data, and the changes will have to be confirmed by the participating nodes in the corresponding blockchain networks. Once data has been confirmed there, provided that the network has no serious inherent flaws, no one will be able to doctor the proofs on the network.