360 blockchain news

1. Cryptofinance focuses on bringing news about bitcoin, cross-border remittance of cryptocurrency, bitcoin information, blockchain projects, etc. for more information, you can pay attention to the official website of cryptofinance and learn more!

2.

Recently, Vulcan team of 360 company found a series of high-risk security vulnerabilities in EOS, a blockchain platform. It is verified that some of the vulnerabilities can remotely execute arbitrary code on EOS nodes, that is, they can directly control and take over all nodes running on EOS through remote attacks

In the early morning of May 29, 360 reported this kind of vulnerability to EOS official for the first time, and assisted it to repair the security risks. The person in charge of the EOS network said that the EOS network will not be officially launched until these problems are fixed

EOS super node attack: the virtual currency transaction is completely controlled

in the attack, the attacker will construct and publish a smart contract containing malicious code, and the EOS super node will execute the malicious contract and trigger the security vulnerability. The attacker then uses the super node to pack the malicious contract into a new block, resulting in the remote control of all nodes in the network (alternative super node, exchange recharge withdrawal node, digital currency wallet server node, etc.)

because the system of the node has been completely controlled, the attacker can "do whatever he wants", such as stealing the key of the EOS super node and controlling the virtual currency transaction of the EOS network; Obtain other financial and privacy data in the participating node system of EOS network, such as digital currency in the exchange, user key stored in the wallet, key user information and privacy data, etc

What's more, an attacker can turn a node in the EOS network into a member of a botnet, launch a network attack, or become a free "miner" to extract other digital currency

source: Science and Technology News

3. I just know your question. Please look at the following answer:
blockchain is an important concept of bitcoin. It is essentially a decentralized database and serves as the underlying technology of bitcoin. Blockchain is a series of data blocks generated by cryptography. Each data block contains the information of a bitcoin network transaction, which is used to verify the validity of the information (anti-counterfeiting) and generate the next block
the information websites in the instry now include:
1. Dig chain network: dig chain network is a professional blockchain media information portal. Dig chain network gathers the big data of global blockchain trading institutions, takes technology as the core, creates dig chain index, dig chain flash, dig chain College and other core sectors, excavates the value of blockchain, and serves as a platform for blockchain entrepreneurs, entrepreneurs and experts Blockchain investors provide one-stop blockchain service system
2. Golden Finance: a well-known old station in the instry
3. Color cloud bit: it is also the old cloud in the instry

you can learn more about it yourself.

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