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The Hacker News - Cybersecurity News and Analysis: Bitcoin exchange

Binance Hacked — Hackers Stole Over $40 Million Worth Of Bitcoin

Binance Hacked — Hackers Stole Over $40 Million Worth Of Bitcoin
May 07, 2019Mohit Kumar
Binance, one of the largest cryptocurrency exchanges in the world, confirmed today that the company lost nearly $41 million in Bitcoin in what appears to be its largest hack to date. In a statement, Binance's CEO Changpeng Zhao said the company discovered a "large scale security breach" earlier on May 7, as a result of which hackers were able to steal roughly 7000 bitcoins, which worth 40.6 million at the time of writing. News of the hack comes just hours after Zhao tweeted that Binance has "to perform some unscheduled server maintenance that will impact deposits and withdrawals for a couple of hours." According to the company, malicious attackers used a variety of attack techniques, including phishing and computer viruses, to carry out the intrusion and were able to breach a single BTC hot wallet (a cryptocurrency wallet that's connected to the Internet), which contained about 2% of the company's total BTC holdings, and withdraw stolen Bitcoins

Greece U-Turns — Now Approves Mr. Bitcoin's Extradition To Russia

Greece U-Turns — Now Approves Mr. Bitcoin's Extradition To Russia
September 17, 2018Wang Wei
Greece just took another U-turn. Mr. Bitcoin a.k.a. Alexander Vinnik is not going to France nor to the United States; instead, he is now possibly going to his homeland Russia. The Supreme Civil and Criminal Court of Greece on Friday has overruled previous decisions and approved to extradite the alleged owner of the now-defunct Bitcoin cryptocurrency exchange BTC-e Vinnik to Russia. Several Greek courts have previously ruled in favor of all three countries, Russia, France, and the United States, where Vinnik is wanted to face different criminal and hacking charges. Vinnik, 38, has been accused of operating BTC-e cryptocurrency exchange, which was shut down right after his arrest by Greek police in July 2017 at the request of the U.S., where he is convicted for fraud and money laundering more than $4 billion worth amount of Bitcoin (BTC) for criminals involved in hacking attacks, tax fraud, and drug trafficking. Vinnik is also accused to the failure of the once-most famous

BTC-e Operator, Accused of Laundering $4 Billion, to be Extradited to France

BTC-e Operator, Accused of Laundering $4 Billion, to be Extradited to France
July 17, 2018Swati Khandelwal
In a legal extradition tug-of-war between the United States and Russia, it seems France has won the game, surprisingly. A Greek court has ruled to extradite the Russian cybercrime suspect and the former operator of now-defunct BTC-e crypto exchange to France, instead of the United States or to his native Russia, according to multiple Russian news outlets. Alexander Vinnik , 38, has been accused of laundering more than $4 billion in bitcoin for criminals involved in hacking attacks, tax fraud and drug trafficking with the help of BTC-e crypto exchange. BTC-e, a digital currency exchange service operating since 2011, was seized by the authorities right after Vinnik's arrest in northern Greece in late July 2016 at the request of US law enforcement authorities. Vinnik is also accused to the failure of the once-most famous Japanese bitcoin exchange Mt. Gox , which was shut down in 2014 following a series of mysterious robberies, which totaled at least $375 million in Bitcoin

Yikes! Three armed men tried to rob a Bitcoin Exchange in Canada

Yikes! Three armed men tried to rob a Bitcoin Exchange in Canada
January 25, 2018Wang Wei
As many non-tech savvy people think that Bitcoin looks like a Gold coin as illustrated in many stock images, perhaps these robbers also planned to rob a cryptocurrency exchange thinking that way. All jokes apart, we saw one such attempt on Tuesday morning, when three men armed with handguns entered the offices of a Canadian Bitcoin exchange in Ottawa, and restrained four of its employees. The intruders then struck one of the employees in the head with a handgun, asking them to make an outbound transaction from the cryptocurrency exchange. A fifth employee in another cabin, who remained unseen in an office, called the police before any assets could be taken, and the robbers left empty-handed. One of the suspects arrested later Wednesday after arriving police officers saw him run into a ravine north of Colonnade Road and deployed "extensive resources," including K-9 unit officers, to find him, CBC News reports . "Police are looking for two additional suspects,

Tether Hacked — Attacker Steals $31 Million of Digital Tokens

Tether Hacked — Attacker Steals $31 Million of Digital Tokens
November 21, 2017Swati Khandelwal
Again some bad news for cryptocurrency users. Tether, a Santa Monica-based start-up that provides a dollar-backed cryptocurrency tokens, has claimed that its systems have been hacked by an external attacker, who eventually stole around $31 million worth of its tokens. With a market capitalization of $673 million, Tether is the world's first blockchain-enabled platform to allow the traditional currency to be used like digital currency. Tether serves as a proxy for the US dollar, Euro (and soon Japanese yen) that can be sent between exchanges including Bitfinex, Poloniex, Omni, GoCoin and other markets. According to an announcement on the company's official website posted today, the unknown hacker stole the tokens (worth $30,950,010) from the Tether Treasury wallet on November 19 and sent them to an unauthorized Bitcoin address. The stolen tokens will not be redeemed, but the company is in the process of attempting token recovery in order to prevent them from enter

Greek Court Approves US Extradition of BTC-e Operator In $4 Billion Money Laundering Case

Greek Court Approves US Extradition of BTC-e Operator In $4 Billion Money Laundering Case
October 05, 2017Swati Khandelwal
A Greek court has approved the U.S. extradition of a 38-year-old Russian national accused of laundering more than $4 billion in bitcoin for culprits involved in hacking attacks, tax fraud and drug trafficking with the help of the now-defunct BTC-e exchange. Alexander Vinnik , an alleged operator of BTC-e—a digital currency exchange service that has been in operation since 2011 but seized by the authorities right after Vinnik's arrest in a beachside village in northern Greece in late July 2016 at the request of US law enforcement authorities. Since his arrest, Moscow has also requested Vinnik be returned home, as it has previously done with other Russian nationals wanted by the United States. However, the Greek court ruled Wednesday (4 October) to extradite Vinnik to the U.S., where he will face trial on the charges with the operation of an unlicensed money service business, money laundering, conspiracy to commit money laundering, and engaging in unlawful monetary transact

Hackers Behind WannaCry Ransomware Withdraw $143,000 From Bitcoin Wallets

Hackers Behind WannaCry Ransomware Withdraw $143,000 From Bitcoin Wallets
August 03, 2017Mohit Kumar
The cyber criminals behind the global WannaCry ransomware attack that caused chaos worldwide have finally cashed out their ransom payments. Nearly three months ago, the WannaCry ransomware shut down hospitals, telecom providers, and many businesses worldwide, infecting hundreds of thousands of computers in more than 150 countries, encrypting files and then charging victims $300-$600 for the keys. WannaCry was really bad, as the nasty ransomware forced the British NHS (National Health Service) to shut down hospitals and doctor's surgeries, and infected a Spanish telecommunications company and Russian mobile operator, among much more. Even a month after the outbreak, the WannaCry ransomware was found infecting systems at Honda Motor Company , forcing the factory to shut down its production, and 55 speed and traffic light cameras in Victoria, Australia. Overall, the hackers behind WannaCry made $140,000 in Bitcoins from the victims who paid for the decryption keys—but for

How Hackers Cash Out Thousands of Bitcoins Received in Ransomware Attacks

How Hackers Cash Out Thousands of Bitcoins Received in Ransomware Attacks
July 28, 2017Swati Khandelwal
Digital currencies have emerged as a favourite tool for hackers and cyber criminals, as digital currency transactions are nearly anonymous, allowing cyber criminals to use it in underground markets for illegal trading, and to receive thousands of dollars in ransomware attacks— WannaCry , Petya , LeakerLocker , Locky and Cerber to name a few. Also, every other day we hear about some incidents of hacking of crypto currency exchange or digital wallets, in which hackers stole millions of dollars in Bitcoin or Ethereum. The latest back-to-back series of thefts of Ethereum —one of the most popular and increasingly valuable cryptocurrencies—in which around half a billion dollars in total were stolen is the recent example of how much hackers are after crypto currencies. It's obvious that after ripping off hundreds of thousands of cryptocurrencies from exchanges, wallets and ransomware victims, cyber criminals would not hold them in just digital form—the next step is to cash the

Bitcoin Exchange Operator Arrested For $4 Billion Money Laundering Scheme

Bitcoin Exchange Operator Arrested For $4 Billion Money Laundering Scheme
July 27, 2017Mohit Kumar
Greek  police have arrested a Russian man who is believed to have been the operator of the popular BTC-e Bitcoin exchange on charges of laundering more than $4 billion in bitcoin for culprits involved in hacking attacks, tax fraud and drug trafficking. A United States jury indicted 38-year-old Alexander Vinnik on Wednesday after his arrest in Greece on Tuesday at the request of US law enforcement authorities. The suspect is one of the operators of BTC-e, a service operational since 2011. Headquartered in Russia, the digital currency exchange has been offline since the arrest of Vinnik, and its homepage says, "Site is under maintenance. We apologize for the inconvenience.." According to a press release published by the U.S. Treasury's Financial Crimes Enforcement Network (FinCEN), BTC-e ignored "know your customer" laws in an effort to serve criminals, and even hosted message boards buzzing with illegal activities. The FinCEN also announced a $110

Largest Cryptocurrency Exchange Hacked! Over $1 Million Worth Bitcoin and Ether Stolen

Largest Cryptocurrency Exchange Hacked! Over $1 Million Worth Bitcoin and Ether Stolen
July 05, 2017Swati Khandelwal
One of the world's largest Bitcoin and Ether cryptocurrencies exchanges Bithumb has recently been hacked, resulting in loss of more than $1 Million in cryptocurrencies after a number of its user accounts compromised. Bithumb is South Korea's largest cryptocurrency exchange with 20% of global ether trades, and roughly 10% of the global bitcoin trade is exchanged for South Korea's currency, the Won. Bithumb is currently the fourth largest Bitcoin exchange and the biggest Ethereum exchange in the world. Last week, a cyber attack on the cryptocurrency exchange giant resulted in a number of user accounts being compromised, and billions of South Korean Won were stolen from customers accounts. Around 10 Million Won worth of bitcoins were allegedly stolen from a single victim's account, according to the Kyunghyang Shinmun, a major local newspaper. A survey of users who lost cryptocurrencies in the cyber attack reveals " it is estimated that hundreds of mill

FBI is Investigating Theft of $1.3 Million in Bitcoin from a Massachusetts Man

FBI is Investigating Theft of $1.3 Million in Bitcoin from a Massachusetts Man
October 15, 2016Swati Khandelwal
Over two months ago, the world's third largest Bitcoin Exchange Bitfinex lost around $72 Million worth of Bitcoins in a major hack. Shortly after the company encountered a $72,000,000 Bitcoin theft, an unnamed Bitfinex user from Cambridge, Massachusetts, filed a police report in September, alleging that $1.3 Million of funds were stolen from his account. Since then the Cambridge police have handed the case over to the FBI, which is working with the Bitcoin exchange as well as European authorities to recover funds stolen from the Bitfinex user, Coindesk reports . The individual claimed that he held $3.4 Million in Bitcoin in his personal wallet hosted by the Bitfinex Bitcoin exchange. But following the August's Bitfinex breach, he was left with $2.1 Million in his account. Bitfinex then notified the individual of his initial loss of approximately $1.3 Million in Bitcoin, but after the company issued IOU tokens as an emergency measure to keep the exchange operating, the l

BlockChain.info Domain Hijacked; Site Goes Down; 8 Million Bitcoin Wallets Inaccessible

BlockChain.info Domain Hijacked; Site Goes Down; 8 Million Bitcoin Wallets Inaccessible
October 12, 2016Wang Wei
UPDATE: The site is back and working. Blockchain team released a statement via Twitter, which has been added at the end of this article. If you are fascinated with the idea of digital currency, then you might have heard about BlockChain.Info. It's Down! Yes, Blockchain.info, the world's most popular Bitcoin wallet and Block Explorer service, has been down from last few hours, and it's believed that a possible cyber attack has disrupted the site. The site is down at the time of writing, and the web server reports a bad gateway error, with a message on the website that reads: "Looks like our site is down. We're working on it and should be back up soon." With more than 8 million Digital Wallet customers, BlockChain is users' favorite destination to see recent transactions, stats on mined blocks and bitcoin economy charts. A few hours ago, BlockChain team tweeted about the sudden breakdown of the site, saying: "We're researching a DNS

Warning — Bitcoin Users Could Be Targeted by State-Sponsored Hackers

Warning — Bitcoin Users Could Be Targeted by State-Sponsored Hackers
August 19, 2016Mohit Kumar
Another day, another bad news for Bitcoin users. A leading Bitcoin information site is warning users that an upcoming version of the Blockchain consolidation software and Bitcoin wallets could most likely be targeted by "state-sponsored attackers." Recently, one of the world's most popular cryptocurrency exchanges, Bitfinex, suffered a major hack that resulted in a loss of around $72 Million worth of Bitcoins . Now, Bitcoin.org, the website that hosts downloads for Bitcoin Core, posted a message on its website on Wednesday warning users that the next version of the Bitcoin Core wallet, one of the most popular bitcoin wallets used to store bitcoins, might be replaced with a malicious version of the software offered by government-backed hackers. Specifically, Chinese bitcoin users and services are encouraged to be vigilant " due to the origin of the attackers. " Bitcoin.org doesn't believe it has sufficient resources to defend against the attack.

Bitcoin Exchange Offers $3.5 Million Reward for Information of Stolen Bitcoins

Bitcoin Exchange Offers $3.5 Million Reward for Information of Stolen Bitcoins
August 14, 2016Mohit Kumar
Hong Kong-based Bitcoin exchange 'Bitfinex' that lost around $72 Million worth of its customers' Bitcoins last week is now offering a reward of $3.5 Million to anyone who can provide information that leads to the recovery of the stolen Bitcoins. Bitfinex revealed on August 2 that the cryptocurrency exchange had suffered a major security breach, which resulted in the loss of nearly 120,000 BTC. The hack led to a 36 percent loss for each Bitfinex customer, who will be issued tokens to be redeemed as the company is able to reimburse the losses. Now, the exchange is willing to offer 5% of the lost funds ( nearly 6,000 BTC ) as a reward for the recovery of the stolen bitcoins. The news came after a Reddit user, using alias someguy916, inquired about a reward Bitfinex would be willing to offer for the stolen bitcoins. In response to the question, Bitfinex community director Zane Tackett stated that a bounty would be awarded to anyone who has information that would hel

Bitcoin Price Drops 20% After $72 Million in Bitcoin Stolen from Bitfinex Exchange

Bitcoin Price Drops 20% After $72 Million in Bitcoin Stolen from Bitfinex Exchange
August 03, 2016Mohit Kumar
Yet another blow to Bitcoin: One of the world's most popular exchanges of the cryptocurrency has suffered a major hack, leading to a loss of around $72 Million worth of Bitcoins. Hong Kong-based Bitcoin exchange ' Bitfinex ' has posted a note on their website announcing the shutdown of its operation after discovering a security breach that allowed an attacker to steal some user funds. While the company did not mention a total amount lost in the breach, one of their employees — Bitfinex community director Zane Tackett — confirmed on Reddit that the total amount stolen was 119,756 bitcoins — worth up to $72 Million in cash. The cause of the security breach and the hacker behind the incident is still unclear, but the attackers appear to have mysteriously bypassed Bitfinex's mandated limits on withdrawals. "The theft is being reported to — and we are co-operating with — law enforcement," Bitfinex statement reads. "We will look at various options to

$1.75 Million in Bitcoin Stolen from Chinese BTER Bitcoin Exchange

 $1.75 Million in Bitcoin Stolen from Chinese BTER Bitcoin Exchange
February 16, 2015Swati Khandelwal
The most popular Chinese Bitcoin exchange BTER announced that it has been hacked on Valentine's Day and lost more than £1.1 Million-worth ($1.75 Million; one BTC is about $270) of the digital currency. The Bitcoin Exchange hasn't revealed more details about suspects behind the breach or how the cold wallets were compromised, except that 7,170 Bitcoin cryptocurrency was stolen from the company's " cold wallets ," a way of storing the digital currency offline. " All wallets have been shut down and withdrawals of unaffected coins will be arranged later, " the official website of BTER Bitcoin exchange states. Internet sleuths are already on the hunt to trace the missing Bitcoin. Because of the way the digital currency works, it is possible to trace any transaction or funds easily by using public available service, called " blockchain ." According to the announcement, the stolen Bitcoin cryptocurrencies were broadcast through the trans

Bitstamp Bitcoin Exchange Hacked, $5 Million Stolen in Hack Attack

Bitstamp Bitcoin Exchange Hacked, $5 Million Stolen in Hack Attack
January 06, 2015Mohit Kumar
One of the biggest, reliable and most trusted Bitcoin exchange — Bitstamp — on Monday announced that it has been a target of a hacking attack, which lead to the theft of " less than 19,000 BTC" (worth about $5 million in virtual currency; one BTC is about $270). Bitstamp issued a statement on its official website in which the company warned its users not to deposit any Bitcoin to previously issued addresses, so as to prevent further losses. While the investigation is going on, the company has frozen its user accounts, blocked deposits as well as other transactions and suspended the trading business. After the Slovenian-based Bitcoin exchange suspected the security breach over the weekend that compromised one of Bitstamp's operational and active bitcoin storage wallets, the exchange suspended its service for the time being. The company reassured its users that the security breach only affected its " operational wallet ," i.e. only " a small fr

MtGox Hacker tricks people to install Bitcoin Stealer

MtGox Hacker tricks people to install Bitcoin Stealer
March 15, 2014Swati Khandelwal
This News will blow everyone's mind! If you are a bitcoins holder then you might be aware of  MtGox , Once the World's biggest Bitcoin exchange .  MtGox  filed for bankruptcy last month after saying it lost some 8,50,000 Bitcoins to hackers and suddenly went dark with no explanations. A few days ago, some unknown hacker breached into the personal blog and Reddit account of MTgox CEO,  Mark Karpeles  to level charges of fraud. But, Hackers are very clever to avail every eventuality they get. After compromising the MtGox CEO's blog, the hacker posted a 716MB ZIP file, MtGox2014Leak.zip , which contains the data dump and specialized software tools for remote access to MtGox data, but these software tools turned out to be a Bitcoin wallet stealing malware , according to the research carried out by the Kaspersky Lab Expert , Sergey Lozhkin. The application was actually a malware, which was created to search and steal Bitcoin wallet files from the victims' computer.

World's largest Bitcoin exchange Mt. Gox Shuts Down; CEO quits Bitcoin Foundation

World’s largest Bitcoin exchange Mt. Gox Shuts Down; CEO quits Bitcoin Foundation
February 24, 2014Wang Wei
World's largest Bitcoin exchange Mt. G ox  has shut down its website, withdrawal system, deleted its Twitter feed and halted all trading systems after it detected " unusual activity ." The Bitcoin Foundation, a Bitcoin advocacy group, confirmed th at Mark Karpeles , the chief executive of Tokyo-based Mt. Gox  bitcoin exchange has resigned from the board of the Bitcoin Foundation. This comes just days after the exchange gave an update regarding the technical issues. Last week, Mt. Gox said a technical glitch that had forced the exchange to suspend bitcoin withdrawals for a week. They discovered the transaction falsification glitch and same flaw alleged to have been used to steal all of the bitcoins worth about $2.7 million from Silk Road 2.0 . Later, some sources close to the matter have confirmed that more than 700,000 bitcoins are indeed missing from MtGox records, in a ' slow-leak ' hack that went on for years. The repeated technical glitches over
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