Monaco token falls 33% in a day

Bitcoin prepaid debit card operator Monaco token decreases due to removal of asset contract 
01 November 2017   1683

Monaco token, which is currently traded at $6.54 and has a market capitalisation of $64,175,249 fell down by 32.71% within last 24 hours. 

Monaco fall charts novemberMonaco Charts

On november 1 there was made an announcement in the official twitter account of Monaco that asset contract is being removed from Monaco roadmap. The statement was made that Monaco's asset smart contract scheme would no longer feature in its future.

Kris Marszalek, a chief executive officer, released a video, giving an explanation for such a move and stating that reasons behind this decision are “legal” and “commercial”.

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   979

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.