Attack on digital currency exchange
Yin Zhentao, deputy director of the law and Finance Research Office of the Financial Research Institute of the Chinese Academy of Social Sciences, said that digital currency faces two risks. The first is the technical level. Digital currency relies on blockchain technology and a system, which will make it suffer from security impact, such as hacker attacks on computer systems. We have seen many practical problems in this process
Zhao Zhanzhan, a special researcher of intellectual property research center of China University of political science and law, believes that digital currency has anonymity, quickness and irrevocability. In addition, bitcoin and other digital currencies have high circulation in the world, so many criminals use digital currency as a new money laundering channel. Moreover, there are many different ways to realize money laundering through digital currency. Generally speaking, the probability of new money laundering being found and investigated is lower than before. Many countries have no effective means and technology to combat money laundering through digital currency. These factors lead to criminals prefer this way of money laundering
Binance exchange, with rapid development, has become one of the top five exchanges in the world in just half a year. Unlike idcm.io, which was the first to support vhkd, binance directly issued its own token BNB and launched the exchange
advantages: large trading volume; Support multiple computers and mobile phones; Multi language support; More currencies: 99 cryptocurrencies such as BTC, ETH, LTC and BNB are supported, 235 paired trading markets are available, and the service charge is low; It's faster to recharge and withdraw money
disadvantage: they have no futures and OTC trading, and only support currency trading, and stopped the service to domestic users some time ago, so domestic users need to choose carefully. At the same time, because binance is an exchange trading platform, it cannot be traded directly with legal currency, so it needs to use other platforms to buy cryptocurrency
it's not very convenient to recharge it to coin an network. In addition, in February and March of this year, binance suffered serious security incidents and hackers' leek cutting attacks, and its security performance was questioned
extended information:
the process of digital currency trading through the platform is as follows:
(1) investors should first register accounts, and obtain digital currency accounts and US dollar or other foreign exchange accounts
(2) users can buy and sell digital currency with the money in their cash account, just like buying and selling stocks and futures
(3) the trading platform will sort the buying requests and selling requests according to the rules and start to match them. If they meet the requirements, the transaction will be concluded
(4) e to the difference between the buy and sell volumes submitted by users, a buy or sell request may be partially executed
the mode of digital currency trading through operating companies is as follows: take Ruibo coin as an example, Ruibo coin is operated by professional operating company opencoin, ripple protocol was originally designed based on means of payment, and the design idea is based on acquaintance network and trust chain
to use ripple network for remittance or loan, the premise is that in the network, the payee and the payer must be friends (mutual trust relationship is established), or have common friends (trust chain is formed through the transmission of friends), otherwise the trust chain between the user and other users cannot be established, and the transfer cannot be carried out
the ranking of digital currency exchanges is from low to high, including bithumb, okxe, binance, bitmex and coin win national stations note: 1. Asset security is very critical. You can distribute your bitcoin or other currencies through exchanges, online wallets, hardware wallets and paper wallets, so that you won't lose all your assets when attacked or lost by hackers. The secret key information must not be placed in the mailbox or other unsafe online software 2. Whether it is EOS, etc, BTC, LTC, or other platform currencies, in addition to bitcoin itself has been given the attribute of digital currency gold, other currencies are more related to the application and landing of blockchain instry. Pay more attention to and analyze the trend and ecological construction of blockchain instry, so as to return to the original intention of blockchain value investment, It will also be a way to avoid risks
at present, the vast majority of digital currency transactions are concted in exchanges. Among the numerous exchanges, bitfinex, binance, okex and so on are well-known
However, bitcoin and other digital currencies, as decentralized assets, have to be traded in a centralized exchange, which seems to have hidden contradictions and dangers1. Problems and challenges of stock exchanges=“ //www.yuanxue365.com/en/img_fd039245d688d43fdf16c83b761ed21b0ff43bbf ">
in February 2014, Mt. GOx, the world's largest bitcoin exchange at that time, was stolen 850000 bitcoins, and the price of bitcoin suffered a" cliff "crash on that day. Later, it was revealed that Mt. GOx was in fact a thief, and only 7000 bitcoins were actually stolen
in August 2016, bitfinex, the largest U.S. dollar bitcoin trading platform, suffered a security vulnerability, resulting in the theft of 120000 bitcoins, which was worth $65 million at that time. If converted into the price in December 2017, it would be worth nearly $2 billion
on December 19, 2017, South Korea's youbit exchange was attacked by hackers and lost 4000 bitcoins, and the exchange declared bankruptcy
on December 21, 2017, the Ukrainian liqui exchange was stolen 60000 bitcoins, and the unit price of bitcoin plummeted by US $2000
in 2018, such a drama will only continue
in addition to the threat of hackers, traditional exchanges also have some inherent shortcomings, such as lack of supervision and inefficiency. The security of the exchange for investors can only rely on its own credit, and the cost of running is very low. The stock exchange is regulated at the national level, but there is no such sword of Damocles on the top of the digital currency exchange. Moreover, in an exchange, the same order can only be submitted to one exchange. After the user places an order, the funds used for the transaction will be frozen and can only wait for the completion or cancellation of the transaction. These are undoubtedly inefficient
All in all, the problems of exchanges are the problems of centralization2. Decentralization of exchanges=“ //www.yuanxue365.com/en/img_86d6277f9e2f070889a173c9e224b899a801f257 ">
(1) the progress of the exchange itself
the upgrade of security means is various. At present, the best use is cold wallet, that is, to keep the digital currency in the offline U disk. At the end of 2017, when the YouTube exchange was attacked, 75% of its assets were withdrawn into the cold purse in time to avoid greater losses. However, it seems to be a helpless way to protect the online assets by offline means. Of course, there should be many other methods, which will not be repeated here
(2) the representative of cross ledger transaction is ripple network, and the operating company is ripple labs, which is a semi centralized system. Ripple is a decentralized clearing agreement. In order to solve the high cost and delay of inter-bank clearing, its base currency is XRP. Ripple network can connect all kinds of assets, such as US dollar, RMB, Japanese yen, bitcoin, etc. to its own network. In this system, U.S. dollars or bitcoin can be converted into reborn currency, and then reborn currency can circulate freely in the network, just as a highway is built between various assets. Due to the support of major banking institutions, the reborn currency achieved nearly 300 times growth in 2017
(3) decentralized exchange
some teams try to use blockchain technology to build a decentralized exchange. This kind of decentralized exchange, to some extent, is an extension of cross ledger trading
bitshares is the most representative of early rising projects. It builds a blockchain development platform with servers scattered all over the world. Even if some of them are attacked, the system will not collapse. Anyone can transfer money and borrow money freely on this platform, and can also quickly build a centralized exchange based on this platform. In order to ensure stable value, bitstocks also require three times of digital assets as collateral. At present, bitstocks are running fairly well
later, with the development of Ethereum and smart contract, the x x protocol came into being. This is an open protocol running in the Ethereum blockchain and a decentralized exchange in the Ethereum ecosystem. The agreement has attracted many investors. At present, it has completed financing and started to build open source software tools and infrastructure. Of course, there are many competitors. Ether Delta, IDEX and oasis DEX are trying to provide similar functions. Moreover, it is a smart contract system based on Ethereum, which only supports erc20 token. If other smart contract public chains start to rise, the demand will be reced
in addition, there are some teams that are entering, such as the domestic road seal agreement, looping (LRC) in English. They adopted a design similar to the X protocol, and also introced a fast payment function similar to the lightning network. It is characterized by trying to match multiple exchanges, the user's order can be broadcast to multiple exchanges, and completed by different exchanges. Moreover, the user can still use the account funds after placing an order, and the user's behavior of transferring part or all of the funds is equivalent to partial or total cancellation. To some extent, it improves the breadth and timeliness of the transaction. However, this system seems to have damaged the "power" of the existing exchanges. Whether we can persuade everyone to play together will be a difficult problem
At present, there is still a long way to go for the construction of decentralized exchange. In 3-5 years, traditional exchange will still be the main battlefield of digital currency However, in the future, it is worth looking forward to let the decentralized digital currency get rid of the shackles of centralizationAfter a "thousand exchanges" war in the currency circle, the exchange is now in an unsaturated stage of competition, because the moat at the head is not wide enough, the barriers to competition are not hard enough, and the competition that everyone wants to win is very big. Globally, the total volume of digital asset trading is a growing market, and the exchange is the top of the whole instry's food chain, What we are entering is a "new continent of digital world", and the market is big enough; With the continuous iteration of technology and the increasing of application scenarios, the needs of users are also constantly diversified, with a hundred flowers blooming and a hundred schools of thought contending, each with its own characteristics. But after all, "safety first"
the security of exchanges is an eternal topic
as the gathering place of interests, the game of interests behind may create evil links. Looking back on the development history of digital currency exchange, we can see a history full of glory and darkness. Glory is that it continues to provide users with more and more trading services and categories. Unfortunately, in the early stage of the instry, there was a lack of system. Most of the traditional exchanges were highly centralized. As the vested interests, they were opaque in assets, unfair in the distribution of interests, weak in the underlying structure, backward in security technology, chaotic in currency rules, and even dark box operation. In order to promote the global blockchain instry into a healthy development state, the market urgently needs an innovative, democratic, transparent, equal, free and safe trading environment to cope with the upgrading and iteration of the blockchain instry and promote the formation of a benign competition pattern in the global exchanges
the endless events tell us that history will not forget the instrial revolution and innovation mission of the blockchain instry, but also the hope brought by the blockchain to the global trust mechanism and the beautiful vision of redefining the world. Because of this, based on our deep understanding of the blockchain revolution and our goal of making a key contribution to the global blockchain business, we are striving to "pick one from a thousand miles" the most reliable blockchain asset trading platform
as an investor in the currency circle, the big knife of asset security is always hanging on his head. We all realize that the currency circle is a place where risks gather, so we don't even have the courage to recommend investment opportunities to our relatives and friends. Not to mention the drastic fluctuations in token trading, even buying and hoarding coins in the exchange are not bold to recommend. Because in the current stage of weak supervision, many exchange accidents and security news emerge in an endless stream, which means that a careless friend's assets will be swept away. When this wave of bear market came, we saw too many exchanges go bankrupt because of poor profits. At this time, conscientious exchanges will return the token to users, but most of them will roll up the token after they declare bankruptcy. There is "Mentougou" before and "fcoin" after. At this time, users react: you want to earn the profits of the transaction, people are interested in your principal. After seeing too much news like this, I seldom recommend buying coins to friends who are interested in investing in the currency circle
until I also experienced the "312" currency disaster in 2020, fortunately, my exchange adopted the circuit breaker mechanism in time to deal with it, so that I reced the panic and cut the flesh. Until now, the market has come back, experienced the return of capital and made profits, I carefully considered recommending this exchange; In this currency disaster, LOEX Lein of this exchange took correct and timely measures to protect the interests of users, won good reputation of users, and stood the test before I really took action and recommended it to my friends
the exchange, which has been operating for two years and has kept a record of zero security failures, has captured the rigid demand of many investors: asset security since its emergence. LOEX always adheres to the principle of user first and safety first, provides users with a safe, stable and convenient digital asset trading platform, and is committed to becoming a leader in the era of digital economy
first of all, LOEX ren operates openly through smart contracts
every user's transaction can be clearly observed through the EOS browser to ensure that your transaction is real. At the same time, because your assets are no longer handed over to the official team of LOEX ren, they are put in a place called "smart contract". Public rules ensure that your assets are smart and your EOS account is free to enter and leave, which ensures the safety of your assets. This is a safe transition to decentralization
next, LOEX also has AI program to automatically detect
fault handling: support cluster expansion and active / standby operation
monitoring and early warning: real time monitoring of functional moles and timely early warning of abnormal moles
operation and maintenance center: it has a complete server cluster and database maintenance platform
protection measures: DDoS protection, intelligent ban, remote disaster recovery,
risk control management
we have a cross chain hosting cooperation system
the security system cooperates with Manwu District, know Chuangyu and other well-known enterprises
we have reached in-depth cooperation with the above-mentioned well-known institutions in terms of security. The security institutions provide a series of code audit services for smart contract projects, and continue to provide security audit services after the code upgrade of the project party. At the same time, the organization team will also provide long-term safety testing services to LOEX
therefore, what LOEX can do is secure asset protection, risk screening of currency projects, and security behavior inspection of exchange users
financial management cooperates with famous Wall Street AA level quantitative team
in the future, it can make LOEX exchange more secure and reliable. LOEX cross chain hosting can bring a large number of application scenarios to customers. LOEX exchange can provide sharing depth for all partners of loex.io, so that customers can have better circulation and trading depth in the exchange, and complete safe startup