Stellar Lumens goes down

Despite its recent optimistic developmet, Stellar Lumens fell 20% down during last week
31 October 2017   4690

Stellar Lumens tracked back by around 20% in the past 7 days reaching the price of $0,03 and market capitalisation of $488 million in comparison with $711 million marketcap on October 24.

Stellar Lumens Charts October 2017
Stellar Lumens Charts

Only two weeks ago the cryptocurrency saw 110% price jump which was linked to cooperation of IBM, Stellar.org and a number of banking partners announced on October 16. The cooperation aimed at cross border payments possible on the blockchain.

Within two weeks after the announcement it seems like the market euphoria in response to the news is calming, and the price of Lumens is going down.

Its price is expected to keep decreasing until the new Bitcoin fork Segwit2x which will be implemented in November 2017.

The coin price is currently remaining at the point of $0.029, which is far from the highest price it had in May 2017 costing $0.06, and it’s hard to predict if it will rise back or not in the nearest future.

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   1011

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.