Is it dangerous to download blockchain
Although driven by the influx of capital and talents, the blockchain instry ushered in rapid development, but as an emerging instry, the frequent warning of its security vulnerabilities caused people to worry about the risk of blockchain
Yu Kequn, director of the national information technology security research center, pointed out that the emergence of blockchain has brought people a lot of expectations for privacy exposure, data leakage, information tampering, network fraud and other issues. However, there are still many challenges in the security of blockchain 
Li Bin, assistant director of China Information Security Evaluation Center, analyzed that the current blockchain is divided into three types: public chain, private chain and alliance chain. No matter which type, it faces security challenges in algorithm, protocol, use, time limit and system. What is particularly critical is that the current blockchain is still facing 51% attack problem, that is, nodes can successfully tamper and forge blockchain data by mastering more than 51% of the network examples
it is worth noting that in addition to external malicious attack risk, blockchain also faces the threat of its endogenous risk. Yu Kequn reminded that how to build a complete security application system around the equipment, data, application, encryption, authentication and authority of the application system of the whole blockchain is an important problem that all parties must face
Wu Jia also analyzed that as an emerging instry, employees in the blockchain instry are lack of safety awareness, which leads to the low safety factor of the software and hardware related to the blockchain and a large number of security loopholes. In addition, there are many ecological links in the whole blockchain. In contrast, the strength of the relevant security employees is scattered and it is difficult to form a joint force to solve the problem. A systematic solution is needed to meet the above challenges
content source: zhongxin.com
first of all, e to its lack of supervision, its circulation and trading forms are mostly similar to the issuance and listing of securities, and there is the behavior of setting up an exchange for trading. Its trading process and trading results are not transparent, and it is difficult to regulate when encountering problems. Moreover, its price formation mechanism is not transparent, and the trading price fluctuates greatly, which is easy to make investors suffer huge losses
secondly, it is not recognized by the central bank and can not be used as currency in China. Once it is subject to policy supervision, it is likely to encounter the risk that no one will take over the offer and the price will plummet, and the property law does not clearly protect the corresponding provisions of digital currency. Therefore, it is very dangerous to speculate on the blockchain, which is equivalent to streaking in the cold winter
finally, although blockchain is not illegal, it can not be ruled out that it is used by a small number of fraudsters and illegal fund raisers as a tool for crime and money laundering
therefore, it is recommended to carefully participate in blockchain investment to avoid irreparable losses.
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