Even if a blockchain register is public, the data communications implemented within it are verified and sent using advanced encryption techniques (cryptography).
This ensures that the data are correct from the sources to the recipients and that nothing is intercepted in the meantime. If blockchain technology was adopted on a larger scale, the probability of hacking or attempts to tamper with and intrusion of corporate databases could be reduced, due to the fact that distributed registries are, at the moment, considered more robust than many legacy systems.
One way in which the risk associated with the use of conventional IT protection technologies is reduced is linked to the complete elimination of the need for human intervention (no operator, in fact, is expected to act as guarantor of the procedures).
By eliminating the need for mediators, the potential security problems are lowered, from hacking to corruption, according to a report by Goldman Sachs. Just to get an idea, GuardTime is an Estonian startup focused on a blockchain-based approach to industrial-level information security.