At present, most blockchain projects carried out within enterprises are so-called "private chains with authority".
Unlike public chains, private chains can only be accessed by selected user groups, which have the right to input, verify, record and exchange data in this account book.
Of course, for an "outsider" who has never been allowed to join, such a network is almost impossible to be captured.
But with the emergence of private chain stores, another question arises: Do we really need to give up decentralization in order to improve privacy and security? MikeOrcutt from MITTechnologyReview wrote that the private chain system "may make its owners feel safer, but it actually only gives them more control, which means that they can make changes whether other network participants agree or not.
This system needs to put forward a balanced mechanism, grant different levels of permissions to different user groups, and check the identities of verifiers to ensure that they are who they claim to be.
This is why many companies are looking for ways to have both-decentralization of public chains and additional security of private chains.
The alliance chain developed by IBM, Corda, Ripple and other major manufacturers seems to be a good security choice at present.
In short, they provide enterprises with access to centralized system, and the system itself has a certain degree of encryption auditability and security.
Other companies are also considering how to adjust the public chain to meet their own security needs.
For example, the Ethereum blockchain provides some mechanisms that can be used to ensure the privacy of network participants, including ring signatures, invisible addresses and storing private data of public chains.
In general, the blockchain field is developing steadily towards a new solution, which defines the technical granularity privacy layer for public chain, private chain and alliance chain networks.
IT Training/Discovery Company is actively investigating and fixing known vulnerabilities and adopting new mechanisms to ensure that all parties are protected, and no malicious hacker can break through and exploit the vulnerabilities in the book.