All hi). As I also spoke in the previous posts from a series "Bitcoin History" ( https://steemit.com/cryptocurrency/@krutilla/who-remembers-beginning-of-bitcoin and https://steemit.com/cryptocurrency/@krutilla/dynamics-of-growth-and-taxes-history-bitcoin ) in this post I will write about the bans of theft and exchange of Bitcoin and about big plunders.
Will lock theft and exchange
Bitcoins can be kept in a purse. Historical theft of bitcoin was registered repeatedly. In other time bitcoin exchange were closed, having taken with themselves their bitcoins. The research Wired published in April, 2013 showed that 45 percent of exchangers finish with closing.
On June 19, 2011 violation of safety on Mt. Exchange of bitcoins in Gox caused nominal price fraudulently to fall to one cent on Mt. Exchange of Gox after the hacker used registration data with Mt. Goss Auditor compromised the computer illegally to transfer a large number of bitcoins to itself. They used the software of the exchange to sell them all nominally, creating massive "request" of the order at any cost. Within several minutes the price returned to its correct cost. Accounts with an equivalent more than 8 750 000 US dollars were mentioned.
In August, 2011 MyBitcoin, nowadays nonexistent processor of transactions of bitcoins, declared that it was cracked that led to its closing, having paid 49% of deposits, having left more than 78 000 bitcoins (that about 800 000 US dollars at that time are equivalent), missing persons for.
At the beginning of August, 2012 in court of San Francisco a claim against Bitcoinica - the place for sale of bitcoins was submitted - demanding 460 000 US dollars from the company. In 2012 a bitkoinik it was cracked twice that led to statements that the meeting place neglected safety of money of clients and deceived them from requests for withdrawal of funds.
At the end of August, 2012 the owner closed operation under the name "Bitcoin of Saving and Trust", having left about 5,6 mln. dollars of the USA in debts on the basis of bitcoins; it led to statements that this operation was Ponzi's scheme. In September, 2012 the U.S. Securities and Exchange Commission as it is reported, began investigation on this case.
In September, 2012 Bitfloor, bitcoin exchange, also reported that it was cracked, and 24 000 bitcoins (cost about 250 000 US dollars) were stolen. As a result of Bitfloor suspended work. In the same month of Bitfloor resumed operations; its founder told that he reported about theft of FBI and that he plans to pay to the victims though repayment periods are not clear.
On April 3, 2013 the Instawallet company, the supplier of Internet purses, was cracked therefore more than 35 000 bitcoins which cost was estimated at 129.90 US dollars for bitcoin at that time or nearly 4,6 million dollars were stolen. As a result of Instawallet suspended work.
In October, 2013, Inputs.io, the Australian bitcoin purse was cracked with loss of 4100 bitcoins worth more than 1 million US dollars during theft. Service was carried out by TradeFortress operator. Coinchat was captured by the new administrator.
On October 26, 2013 the trading platform on the basis of bitcoins in Hong Kong belonging to Global Bond Limited (GBL) disappeared with 30 million yuans (5 million US dollars) from 500 investors.
Mt. Gox, the Japanese exchange which in 2013 processed 70% of all global traffic in bitcoin declared bankruptcy in February, 2014, and bitcoins worth about 390 million US dollars for not clear reasons. Finally the CEO was arrested and accused of waste.
On March 3, 2014 the Flexcoin company declared that it closes the doors because of the hacker attack which happened the day before. In the statement which occupies the homepage now they declared on March 3, 2014 that "as Flexcoin have no resources, assets or not to return from this loss, we immediately close our doors". Users cannot visit the website any more.
The Chinese currency exchange of Bter lost 2,1 million dollars in BTC in February, 2015.
The Slovenian exchange Bitstamp lost bitcoin worth 5,1 million dollars because of breaking in January, 2015.
The American exchange Cryptsy declared bankruptcy in January, 2016, allegedly because of an incident with breaking in 2014; the receiver appointed by court claimed later that the CEO of Cryptsy stole 3,3 million dollars.
In May, 2016 Gatecoin was closed temporarily after violation led to loss about 2 million dollars in cryptocurrency. Subsequently he renewed the exchange in August, 2016 and slowly pays damages to the clients.
In August, 2016 hackers stole about 72 million dollars in client bitcoin from Hong Kong on the basis of exchange of Bitfinex.
In December, 2017 hackers stole 4 700 bitcoins from Nicehash on the platform which allowed users to sell hashing power. The cost of the stolen bitcoins was about 80 million dollars. It is one of the biggest hak in the history of cryptocurrency.
The lost Bitcoins
At the Building on Bitcoin conference the former leading developer BitGo Dzheymson Lopp showed that about 4 million bitcoins are lost forever, and 2 million more were stolen.
Thus, as of July, 2018, in total 6 million BTC remain inaccessible. And if to consider what for their restoration cannot be carried out хардфорк, then 28,5% of the fixed issue of bitcoins (21 million), are lost finally. Loss of nearly 30% of total amount finally considerably will increase cryptocurrency value.
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