Polish Credit Office to set Blockchain Resolve

The Polish BIK, collaborating  with Distributed Ledger Technology (DLT) provider Billon, is to adopt blockchain for storage and security of customer information
16 May 2018   951

BIK, that is hold by domestic and foreign banks in Poland,  comprise the major banks, keeps over 140 million credit histories of more than 1 million businesses and 24 million people in Poland, providing data on the credit history of bank customers, credit unions, etc. from the whole credit market of the country.

We believe that blockchain technology will transform how the financial sector communicates sensitive data with clients. Our solution will soon be expanded to include electronic delivery with active confirmation and remote signing of online agreements. It is also important that the solution meets the legal requirements of a durable medium of information, as well as the requirements of the EU General Data Protection Regulation [GDPR], which comes into force this month.
Mariusz Cholewa
President, BIK

As the founder and CEO of Billon Andrzej Horoszczak claims, the resolve that Billon has developed with BIK provides the world’s first GDPR-compliant blockchain platform which can upgrade customer service processes and manage the realization of customer rights such as the “right to be forgotten.”

This solution returns control of user data back to consumers, creating a level playing field between individuals and big corporations. The benefits of this solution can have an impact beyond the financial sector, and we anticipate that it will soon be adopted by institutions across industries such as telecommunications, insurance and utilities.
Andrzej Horoszczak
Founder, CEO, Billon

The used for the BIK project DLT solution will place every document in accessible, long-term storage, independent of the status of the contractual relationship status between the service provider and the user. Patents have been registered and the technology is ready to be accepted at performance levels that competes with the  traditional centralized databases.

Potentional Vulnerabilities Found in ETH 2.0

Least Authority have found potentional security issues in the network P2P interaction and block proposal system
26 March 2020   975

Technology security firm Least Authority, at the request of the Ethereum Foundation, conducted an audit of the Ethereum 2.0 specifications and identified several potential vulnerabilities at once.

Least Authority said that developers need to solve problems with vulnerabilities in the network layer of peer-to-peer (P2P) interaction, as well as in the block proposal system. At the same time, the auditor noted that the specifications are "very well thought out and competent."

However, at the moment there is no large ecosystem based on PoS and using sharding in the world, so it is impossible to accurately assess the prospects for system stability.
Also, information security experts emphasized that the specifications did not pay enough attention to the description of the P2P network level and the system of records about Ethereum nodes. Vulnerability risks are also observed in the block proposal system and the messaging system between nodes.

Experts said that in the blockchains running on PoS, the choice of a new block is simple and no one can predict who will get the new block. In PoS systems, it is the block proposal system that decides whose block will fall into the blockchain, and this leads to the risk of data leakage. To solve the problem, auditors suggested using the mechanism of "Single Secret Leader Election" (SSLE).

As for the peer-to-peer exchange system, there is a danger of spam. There is no centralized node in the system that would evaluate the actions of other nodes, so a “malicious" node can spam the entire network with various messages without any special punishment. The solution to this problem may be to use special protocols for exchanging messages between nodes.