WeChat to Ban Crypto Media

There are a lot of popular crypto related accounts that are unavailable now
22 August 2018   1083

WeChat messenger, developed by the Chinese technological giant Tencent, baned media accounts connected to blockchain and cryptocurrencies. This is reported by CoinDesk with reference to a local source.

Among the affected WeChat accounts there are: Jinse, supported by Node Capital, and Deepchain, which developed several crypto-currency funds at once. When you switch to these accounts, you receive a message stating that they are blocked "due to user complaints."  A similar message appears when switching to Huobi News and CoinDaily accounts.

Due to users' complaints and after the platform's examinations, the account is found to violate 'Temporary Regulations on the Development and Management of Public Information Services for Instant Messaging Tools' and all contents have been banned. The account has been prohibited for use.
 

WeChat Message

The reason for blocking WeChat accounts is still unknown. However, newly-enacted rules from China's government may have played a factor.

The users of instant messaging tools serving in public information service activities shall abide by relevant laws and regulations. For instant messaging service users who violate the agreement, the instant messaging service provider shall take measures such as warning, restriction, suspension, and closure until the account is closed, meanwhile saving the relevant records and fulfilling the obligation to report to the relevant authority.
 

The Temporary Regulations on the Development and Management of Public Information Services for Instant Messaging Tool

In March, the national publication People's Daily severely criticized Chinese news sources about the blockchain and crypto-currencies, arguing that they help to manipulate the 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   964

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.