G20 to Urge Watchdogs to Assess Crypto-Related Risks

G20 representatives believe that at the moment, cryptocurrency doesn't thread global financial stability
10 June 2019   816

The G20 countries urged the Financial Stability Board and regulators in various countries to assess the risks associated with digital currencies. Reported by the Cointelegraph.

At the meeting the G20 participants noted that regulators should pay more attention to cryptocurrencies and the risks associated with them. It is emphasized that at the moment digital currencies do not pose a threat to world financial stability. The corresponding meeting of the ministers of finance and representatives of central banks of G20 countries took place in Fukoka, Japan, at 9th of June, 2019.

While crypto assets do not pose a threat to global financial stability at this point, we remain vigilant to risks, including those related to consumer and investor protection, anti-money laundering (AML) and countering the financing of terrorism (CFT).

G20's Document

G20 participants also appealed to the Financial Stability Board with a request to strengthen market monitoring and develop measures to counter these risks.

At the same time, the document notes that representatives of the G20 support the creation of platforms for trading cryptoactive assets that protect the interests of users and investors, as well as the integrity of the market.

In addition, the document talks about the potential advantages of the blockchain and cryptocurrency for the global economy.

At the end of last year, the final declaration of the G20 summit also noted the need to regulate the cryptocurrency market.

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   986

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.