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Recent loopholes in virtual currency

Publish: 2021-05-28 00:04:57
1. The value of virtual currency is reflected in "more people recognize it". At the beginning of any instry, there will be savage growth. Take bitcoin as an example, the peak price of bitcoin is close to $2W, and the current price is only about $6500
in the current situation, blockchain is not a mature technology. What the market values is the so-called prospect, and it will take time to improve and excavate it slowly. However, the collapse of virtual currency is just a return to its own value
in short, I think bitcoin will continue to grow slowly after falling below a certain price. The current slump is just that the funds attracted by the previous heat have discovered the characteristics of virtual currency (hacker attack, dealer trading, these two situations will probably only appear in the newly issued currency, which is determined by the characteristics of blockchain, in other words, Hackers may also attack bitcoin in the early stage, but the more people and nodes bitcoin enters, the lower the probability of this situation, and the more difficult it is to generate)
in addition, I think that a large number of people in China even don't know what bitcoin is, so they are ready to make a fortune with money.
2. Is it true that someone in my circle of friends has issued large-scale digital currency loopholes to cash out? I don't think you should believe it. At present, the central bank is at an adaptive stage, and there are still many immature aspects. Is it true that someone in my circle of friends has issued large-scale digital currency loopholes to cash out? I don't think you should believe it. At present, the central bank is at an adaptive stage, and there are still many immature aspects. Is it true that someone in my circle of friends has issued large-scale digital currency loopholes to cash out? I don't think you should believe it. At present, the central bank is in an adaptive stage, and there are still many immature places..
3. The following is for reference only:
very large
in the field of blockchain and virtual currency, such cases of losses caused by the security of exchanges occur frequently, causing great economic losses to users. The security experts of Juhui ggfx also gave a hint: there are still many loopholes in the current digital currency trading platform, for example, the most common are the following six kinds:
the first kind: denial of service attack
denial of service attack is the most important attack against the digital currency trading platform at present. Through denial of service attack, the attacker makes the trading platform unable to access normally, Because users can not accurately distinguish the degree of attack, it often causes panic asset transfer, which brings some loss
the second kind: phishing
even the best technical measures at present can not make the digital currency trading platform avoid phishing attacks. Some hackers and outlaws can confuse digital currency investors by means of fake domain names or fake pages, while ordinary investors can't identify the authenticity, so it's easy to cause asset losses
the third: Hot wallet protection
many digital currency trading platforms use a single private key to protect the hot wallet. If hackers can access a single private key, they can crack the hot wallet related to the private key. For example, in the attack on yapizon of Seoul stock exchange in 2017, the attackers stole hot wallets from the trading platform twice in a year, resulting in a total loss of nearly 50% of the assets of the trading platform and eventually leading to the bankruptcy of the trading platform
Fourth: internal attack
e to the lack of perfect risk isolation measures or ineffective supervision on the authority of employees, the digital currency trading platform also has employees' self-monitoring and stealing, and some employees with operating authority of the platform use internal trust to seek ill gotten gains for themselves. For example, in 2016, the event of employees stealing bitcoin on shapeshift caused a total loss of US $230000 to the trading platform by stealing and reselling sensitive information to others
the fifth: software vulnerability
the software vulnerability of digital currency trading platform includes single sign on vulnerability, OAuth protocol vulnerability, etc. At present, all countries have laws requiring banks or other financial institutions to implement information security measures to protect customers' deposits. However, e to the fact that the blockchain field is still in its infancy, there is a lack of such specifications for encrypting digital assets. Therefore, it is not accidental that many trading platforms have a large number of loopholes in the absence of security constraints
sixth: transaction malleability
Technical supporters of blockchain often think that blockchain transactions are highly secure because they are recorded on records that are said to be unchangeable, but each transaction needs to have a corresponding signature, and the records can be temporarily forged before the final confirmation of the transaction. Mt. GOx, which once accounted for 80% of the world's total transactions, was hacked to submit code changes to the public ledger before the initial transaction was released, resulting in a loss of 473 million US dollars< br /> &# 160;
4.

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

5. It's illegal to steal mines. If there is a large number of mines, someone will take charge of you and sincerely help you,
6.

After installing mining and cutting mod, open E and two new buttons will appear:

will destroy the terrain. In minecraft →. Minecraft → config → battlegear2 (open with Notepad), you can change the probability of a skull brushing a burst arrow

" Skeletons"{ As a result, we are going to be able to earn more, and as a result, and as a result, we have been

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P > P > P > P > P explosion = 0.1000000149 01161

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D: Mystery = 0

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D: poison = 0.100000014901161

just change the explosion to 0

7. Xiaopenyou, you've lost 100 million yuan in corn. Don't run, OK
Dear, come here, millet still loves you.
8.

It was reported on May 29 that 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

the hidden dangers of blockchain network security need to be paid attention to

EOS is a new blockchain platform known as "blockchain 3.0". At present, its token market value is as high as 69 billion yuan, ranking fifth in the global market value

in the blockchain network and digital currency system, nodes, wallets, mines, exchanges and smart contracts all have many attack surfaces. 360 security team has found and exposed several serious security vulnerabilities for digital currency nodes, wallets, mines and smart contracts

this time, the 360 security team found a series of new security vulnerabilities in the smart contract virtual machine of EOS platform, which is a series of unprecedented security risks. No security researchers have found such problems before. This type of security problem not only affects EOS, but also may affect other types of blockchain platforms and virtual currency applications

360 expressed the hope that through the discovery and disclosure of this vulnerability, the blockchain instry and security peers will pay more attention to the security of such issues, and jointly enhance the security of the blockchain network

content source: surging news

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generates the two-dimensional code of the video:
1, WeChat search "code upstream two-dimensional code" official account. Br>2, click the upstream official account, click the two-dimensional code in the bottom left corner menu bar, then click add the two-dimensional code. Br > 3. Click Add QR code to enter the edit page, enter the title here, and then upload the video< Br > 4. After uploading the video, click Save to generate the QR code< Br > 5. After generating the QR code, you can long press the QR code to save it to the mobile phone< Br > < br > the upstream two-dimensional code can not only generate two-dimensional code from video, text, document and audio, but also make an application form. You can fill in the form by scanning the code. You can limit each wechat to only register once. You can also set the start date and deadline of registration. The collected registration information can be exported to excel file for unified management< Br > go to the upstream website to learn more
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