Jiaocheng bitcoin incident
some malware also make great use of the parallel computing power of graphics cards. In August 2011, botnet of bitcoin mining was discovered, and Mac OS X infected by Trojan horse was also discovered to mine bitcoin.
on June 19, 2011, security vulnerability of mt.gox (Magic: abbreviation of the gathering online exchange) bitcoin trading center caused the price of 1 bitcoin to drop to 1 cent (although other transactions were not affected). The reason is that a hacker stole the user's mtgox certificate from the computer infected with the Trojan horse, so he transferred bitcoin to his own account and sold it, resulting in a large number of "ask" requests at that price. A few minutes later, mtgox shut down and cancelled the abnormal transactions in the hacking incident, making the price of bitcoin rebound back to $15. In the end, the bitcoin exchange rate went back to what it was before the crash. Accounts equivalent to more than $8750000 were affected
in July 2011, the operator of bitomat, the world's third largest bitcoin trading center, announced the loss of access rights to the wallet.dat file that records 17000 bitcoins (about 220000 US dollars). At the same time, announced the decision to sell services to make up for the loss of users
in August 2011, mybitcoin, one of the processing centers of common bitcoin transactions, announced that it had been attacked by hackers and shut down. Involving 49% of customers' deposits, more than 78000 bitcoins (then equivalent to about $800000) are missing
in early August 2012, bitconica was sued in the San Francisco court for damages of about $460000. In 2012, bitconica was attacked twice by hackers, accused of ignoring the security of customers' funds and forging withdrawal applications
in late August 2012, bitcoin savings and trust was shut down by its owner, leaving about US $5.6 million in debt. At the same time, he was accused of operating the Ponzi scheme. In September 2012, the securities and Exchange Commission began to investigate the case
in September 2012, bitfloor trading center was also hacked, and 24000 bitcoins (about US $250000) were stolen. Bitfloor was suspended. Bitfloor resumed operations in the same month, and its founder said he had reported the theft to the FBI and that he was planning to compensate the victims, but the compensation schele was unclear
in June 2011, a hacker transferred 25000 bitcoins into his account, which is equivalent to 500000 US dollars. The whole transaction could not be traced. Although the owner of bitcoin announced the theft on the Internet, it was useless. The hacker became the first thief of bitcoin
in 2012, 46703 bitcoin worth US $228845 was stolen e to the disclosure of the super management password of the server of the website hosting provider linode. More than 43000 stolen bitcoins belong to bitcoinica, a bitcoin trading platform. Another 3094 bitcoins are owned by Marek palatinus, a Czech programmer. Gavin Andersen, the chief bitcoin programmer, also lost his five bitcoins.
Bitcoin is just a game. If it is promoted as a tool to get rich, it can be regarded as a fraud. Just like the currency in other online games, the only difference is that bitcoin has been standardized since the game was first formulated. It can't be issued indiscriminately, so it can keep its value better than other virtual game props. It is equivalent to the online collection. Bitcoin is a prop in the game, and its value is reflected in the recognition of bitcoin by players: more people play, the value of props in the game is higher; The risk is that he is not the only game, and his algorithm is not the only one. Maybe someone will be able to make other special coins soon. All you need to do is promote the game and sell your props. As for money, bitcoin does not have the basic attributes of money, such as unfair initial distribution and insecure circulation. Money needs to be maintained by the state machine
the concept of bitcoin was first proposed by Nakamoto in 2009. According to Nakamoto's ideas, the open source software and the P2P network on it were designed and released. Bitcoin is a kind of P2P digital currency. Point to point transmission means a decentralized payment system. Unlike most currencies, bitcoin does not rely on specific currency institutions to issue. It is generated by a large number of calculations based on specific algorithms. Bitcoin economy uses a distributed database composed of many nodes in the whole P2P network to confirm and record all transactions, and uses cryptography design to ensure the security of all aspects of money circulation. The decentralized nature and algorithm of P2P can ensure that it is impossible to artificially manipulate the value of bitcoin through mass proction
1. Bitcoin (bitcoin) is a kind of network virtual currency, which can buy real-life goods. It is characterized by decentralization, anonymity, and can only be used in the digital world. It does not belong to any country or financial institution, and is not subject to geographical restrictions. It can be exchanged anywhere in the world. Therefore, it is used as a money laundering tool by some criminals
2. On January 7, 2014, Taobao announced that it would ban the sale of Internet virtual currencies such as bitcoin and lightcoin from January 14. On February 26, 2014, Democratic Senator Joe Manchin of West Virginia issued an open letter to a number of regulatory authorities of the federal government of the United States, hoping that relevant institutions would pay attention to the status quo of bitcoin encouraging illegal activities and disrupting the financial order, and demanded that actions be taken as soon as possible to completely ban the electronic currency
3. On May 12, 2017, a global outbreak of bitcoin virus madly attacked public and commercial systems! Nearly 74 countries in the world have been seriously attacked
4. From August 1, 2017, global bitcoin trading platform will suspend recharge and withdrawal services. Bitcoin China digital asset trading platform will stop new user registration on September 14, and all trading businesses will be stopped on September 30
< H2 > reference materials: network bitcoin
There are many reasons for bitcoin's collapse. I think it is mainly because it has no government policy support, the conflict between cash bitcoin and virtual bitcoin, and the decline of public confidence in it. First of all, bitcoin is not supported by the government. It is not protected by relevant government policies. In China, the protection of the government is a big protective film. With policy protection, the impact of this slump will be minimized, and the government will share part of the pressure{ RRRRR}
in any case, there are a lot of reasons for bitcoin's collapse, and each has its own views
Invisible bitcoin can not only make people rich or poor overnight, but also bring people worry about their lives
According to Ukrainian media reports quoted by the daily telegraph, on Tuesday (December 26), Pavel Lerner, CEO of the British bitcoin exchange exmo, was kidnapped after leaving his office in Kiev, Ukraine, and dragged into a black galloping car by a group of masked peopleafter the above news came out, a spokesperson of exmo told the daily telegraph that we are doing our best to speed up the search for Lerner and welcome all clues from the outside world. Exmo's business is running as usual and all users' funds are absolutely safe. According to the company's official website, the platform has more than 900000 users
after the kidnapping incident attracted public attention, exmo also announced on official twitter on Thursday that it had been attacked by DDoS (distributed denial of service) with the intention of destroying platform transactions
according to Wall Street reports, at the beginning of this month, when bitcoin rose to more than US $13000, the payment system of nice hash, the world's largest digital currency mining platform, was hacked and bitcoin in users' wallets was stolen. Bitcoin millionaire, a bitcoin information website, has since estimated that as many as 4736 bitcoins were stolen by hackers, with a total value of more than $62 million
interestingly, as a foreign netizen imagined, after the kidnappers received the ransom, if bitcoin continued to appreciate, it would be OK. If bitcoin collapsed before the gloves turned, wouldn't it be a "huge loss"
In fact, this is also the old question in the minds of many investors - how long can bitcoin's investment boom last On December 2, when talking about bitcoin in public activities, pan Gongsheng, vice governor of the people's Bank of China, said that it was a decisive and correct decision for regulators to shut down bitcoin trading platform and stop ICO a few months ago According to BBC news, on December 14, Andrew Bailey, CEO of the financial conct authority (FCA), the UK's top regulator, issued a warning to investors, saying that bitcoin buyers should be ready for "full compensation". Bitcoin lacks the endorsement and support of the government and the central bank, and its risk level is the same as gambling, he saidon Thursday (December 28), the South Korean government announced the countermeasures to combat virtual currency speculation, and considered closing some virtual currency transactions, so as to curb excessive speculation. In addition, the South Korean government has decided to implement the real name system of virtual currency trading and expand the investigation authority of the Fair Trade Commission, the anti-monopoly law enforcement agency
In a statement, the South Korean government said that cryptocurrency speculation in South Korea has gone too far and has become irrational, according to the report. The government can no longer allow abnormal speculation to developthe Indian authorities also issued a warning. On Friday, India's finance ministry warned investors about the risks of cryptocurrencies such as bitcoin, saying digital currency investments look like a Ponzi scheme, Reuters reported. In a statement, India's Ministry of Finance said investors and other participants in digital currency transactions were "entirely at their own risk" and advised that it was best to avoid such investments
but from the perspective of optimists, bitcoin is not as static as gold. As a virtual currency, its software code is constantly developing, and its functions can be constantly adjusted, improved and updated, and its value can be realized in unimaginable ways, such as, Many bitcoin fans are looking forward to bitcoin's "lightning network" (an improved way to facilitate payment). If bitcoin gets more attractive functions in the process of continuous evolution, people can even use it for convenient and fast cross-border payment
according to China Securities Journal, based on the sustainability of bitcoin development, bitcoin supporters believe that even if the market value of cryptocurrency expands to 20 times the current value, the market will not go crazy. However, as far as bitcoin itself is concerned, with more and more new technologies coming out, bitcoin's share in the cryptocurrency market will show a downward trend in the future
Hong shuning, a senior researcher of Suning Institute of financial research, recently wrote an article, imagining two situations of "truly killing bitcoin":first, all bitcoin development teams are conservative and complacent, no longer absorbing the latest scientific and technological achievements to improve themselves, resulting in the emergence of a new digital currency with all aspects of technical indicators exceeding bitcoin, It is widely accepted by the society and then replaces bitcoin. This is the failure of bitcoin, but also the success of virtual digital currency
Second, there are serious loopholes in the bitcoin protocol or wallet software, which lead to the security of the whole bitcoin system can not be guaranteed, a large area of funds are stolen, sold at a low price and uncontrollable in the short term, and the social confidence in bitcoin is completely lost
so. In this world, money is easy to use
Zhengzhou couple committed suicide e to the failure of bitcoin investment, which makes people regret. Whether this kind of virtual currency is IQ tax has become a hot topic. This kind of virtual currency is the proct of the development of the times, not IQ tax, but it needs rational investment and can not be taken as the direction of investment the continuous development of Internet technology not only has a profound impact on people's way of life, but also promotes the vigorous development of Internet finance instry. Digital cryptocurrency is widely concerned by investors for its novel architecture design and high price
investors should improve their awareness of risk prevention and take corresponding risk management measures an important feature of cryptocurrency market is that the price fluctuates violently, the market risk is high and the market speculation is serious. With the price risk of digital currency, cryptocurrency also has technical risk and regulatory risk in the face of these risks, investors should be prepared for the corresponding risks before entering the market to improve their anti risk ability. When investors enter the cryptocurrency market, they should not only choose a qualified cryptocurrency platform to improve their ability to resist technical risks, but also do a good job in risk management to avoid investing too much money in the cryptocurrency market< before entering the cryptocurrency market, indivial investors should have a deep understanding of the nature and market environment of cryptocurrency
in short, bitcoin is a virtual currency . Like stocks, it can be invested and traded. In technical terms, bitcoin is a kind of P2P digital currency
but after all, the nature and mode of bitcoin is different from other currencies, and it may prosper in the future. It may also be like the collapse of the economic bubble, which is unknown. If you enter the bitcoin market and have a quarrel, it will not become a real currency, because the fluctuation of the price is impossible to satisfy everyone. If there is a profit, there is a loss. Therefore, the investment of bitcoin should be cautious. If you don't fully grasp it, don't try it easily
transferring bitcoin to the other end of the earth is as simple, low-cost and unlimited as sending e-mail
As a result, bitcoin is used in cross-border trade, payment, remittance and other fields
first: benefiting from the loose monetary policy of the Federal Reserve,
suffered from the COVID-19 pandemic this year. In order to solve the liquidity crisis and stimulate the economy, the Fed injected a large amount of liquidity into the US dollar, causing huge fluctuations in the global financial market, including the digital money market. P>
second: the occurrence of COVID-19, the hedging attribute of bitcoin
COVID-19 epidemic has swept across many countries in the world, and has also had a great impact on enterprises and investment circles. p>
in the Research Report of grayscale investment, it is mentioned that two thirds of the respondents who have invested in bitcoin in the past four months said that the new coronavirus epidemic affected their decision to invest in bitcoin
Internet finance is related to it technology, which requires it audit expertise
bitcoin is related to financial speculation fraud, national macro-economy and financial security. This involves risk management in auditing, especially financial risk and policy risk
in addition, for the theft of bitcoin platform, the IT security audit that can be written on this event alone will be enough for you to write for half a lifetime.