The service will be based on an smart contract in the blockchain, this means that no entity or person will have access or control to the data of the users.
Only the users themselves and the successors will have access, once the information is sent to them.
The data will be stored in the blockchain, encrypted with the owner's key.
Once in the blockchain there will be no way to alter or read them without the owner’s key.
Being a decentralized service, the data will be replicated throughout the network so losing them will be impossible.