Slashdot Mirror

An anonymous reader writes "The Japanese edition of The Wall Streeet Journal reports that Mt. Gox has filed for liquidation under Japanese bankruptcy law (link to article in Japanese, U.S. version may be paywalled). The article cites a 'related party' as saying that Mt. Gox was unable to work out how to deal with creditors spread out all over the globe, nor design a realistic rebuilding plan. The article adds a comment from the company lawyer: Mark Karpeles will not be attending the bankruptcy court hearing in the United States scheduled for April 17th." The announcement from Mt. Gox's lawyer.

thesandbender writes: "Today brings news that MtGox has 'found' 200,000 Bitcoins in a 'forgotten' wallet that they thought was empty (PDF). The value of the coins is estimated to be $116 million USD, which happens to cover their $64 million USD in outstanding debts nicely and might offer them the chance to emerge from bankruptcy. There is no explanation yet of why the sneaky thieves that 'stole' the bitcoins used a MtGox wallet to hide them."

New submitter Dan541 writes in with word that Mt. Gox has halted all operations indefinitely. A statement from the CEO: "As there is a lot of speculation regarding MtGox and its future, I would like to use this opportunity to reassure everyone that I am still in Japan, and working very hard with the support of different parties to find a solution to our recent issues. ... In light of recent news reports and the potential repercussions on MtGox's operations and the market, a decision was taken to close all transactions for the time being in order to protect the site and our users. We will be closely monitoring the situation and will react accordingly." MrBingoBoingo writes that we should not be surprised Mt. Gox appears to have failed "The recent closure of the famous Bitcoin exchange Mt. Gox has grabbed a lot of media attention lately, but people involved heavily in bitcoin have been raising alarms about business practices at Mt. Gox for quite some time now. With the Mt. Gox failure being Bitcoin's biggest since the collapse of the ponzi run by Trendon Shavers, also known as Pirateat40, it might be time to revisit the idea of counterparty risk in the world of irreversible cryptocurrency."

An anonymous reader writes "Bitcoin values dropped sharply over the weekend after the largest trading exchange, MtGox, revealed that an investigation into unusual trading activity turned up a flaw in the underlying Bitcoin software that allowed an attacker to double withdrawal a transaction" Not so fast according to database experts: the real problem is that Mt Gox (and other exchanges) are using a surrogate transaction id rather than a natural key in their databases: "The flaw isn't so much in Bitcoin as it is in exchange-systems. Many exchanges use the tx-id to uniquely identify transactions, but as it turns out, an attacker can change the tx-id without changing the actual transaction, rebroadcast the changed transaction (effectively creating a double-spend) and if his altered transaction gets accepted into a block instead of the legit transaction, the attacker receives his coins and can complain with the exchange that he didn't. The exchange will then check their db, fetch the tx-id from it, look it up in the blockchain and not find it. So they could conclude that the transaction indeed failed and credit the account with the coins. ... A simple workaround is to not use the tx-id to identify transactions on the exchange side, but the (amount, address, timestamp) instead."

Daniel_Stuckey writes "Just two weeks after the Feds shuttered the Silk Road, the notorious online drug bazaar, Bitcoin prices have touched a five-month high — with a single Bitcoin fetching nearly $156 on Tokyo-based exchange Mt. Gox. Bitcoin's resiliency can no longer be denied, especially as the digital currency continued its ascendancy even against the backdrop of a U.S. government in utter disarray. At the 11th hour of the crisis, President Obama signed a bill that ended the partial government shutdown and, more importantly, raised the debt ceiling, an arbitrary limit on the amount of money the country can borrow that would have been surpassed today. If Congress had failed to reach a deal and the U.S. was unable to pay its bills, the results might have been catastrophic, eclipsing the bankruptcy of Lehman Brothers five years ago, the domino that could trigger the worst financial crisis since the Great Depression."

hypnosec writes "World's largest Bitcoin exchange, Mt. Gox, has halted U.S. dollar withdrawals of customer funds in the U.S., citing a need for system improvements. According to Mt. Gox, the exchange has experienced a huge number of requests for deposits as well as withdrawals from both established markets and new markets, following which its bank hasn't been able to process transactions on time. This led to difficulties for its overseas clients, especially those in the U.S. The exchange said that the deposits in USD, transfers to Mt. Gox, and deposits and withdrawals in other currencies will remain unaffected during this period. Mt. Gox will be resuming the USD withdrawals for its U.S. clients once the improvement of its systems is complete." Wired suggests the slowness may be due in part to reluctance from banks to get entwined with Bitcoin for a number of reasons. "The problem is that U.S. banks are afraid that doing business with Bitcoin companies might draw the attention of U.S. or state regulators ... This reluctance may be fed by the sense that Bitcoin poses a threat to the banking industry. Anyone can transfer Bitcoins anywhere for free and that could put a dent in some banking transaction processing fees."

Velcroman1 writes "On May 15, the Department of Homeland Security seized a digital bank account used by 'MtGox,' the world's largest exchange, where people buy and sell bitcoins. DHS alleged, and a judge agreed, that there is 'probable cause' that MtGox is an 'unlicensed money service business.' If proven, the penalty for operating such a business is a fine and up to 5 years in jail. FoxNews.com caught up with several bitcoin exchanges, including CampBX, MtGox, CoinLab and more, to ask them how they've navigated the regulatory waters — and how to go legit." In other shady bitcoin news, it appears the demise of Liberty Reserve has caused hackers to find a new alternative. twoheadedboy writes "Despite suggestions Bitcoin might be the ideal currency for dealers on the dark web, it appears Perfect Money, a Panama-based operation, is proving the most popular alternative to the now-defunct Liberty Reserve. A source working the underground forums told TechWeekEurope that, for now, fraudsters are rapidly migrating to Perfect Money. Many vendors have started accepting it, having previously primarily used Liberty Reserve, which was shut down following the arrest of its founder and four other members this past week. Internet fraudsters might be interested in Perfect Money as it has distanced itself from the U.S., cutting off all new American registrations. However, one forum user said he was turned down by Perfect Money as their 'type of activity is not welcome.' Other currencies may yet win out."

hydrofix writes "The Bitcoin-to-USD exchange rate had been climbing steadily since January 2013, from around 30 USD to over 250 USD only 24 hours ago. Now, the value bubble seems to have burst, at least partially. The primary trading site MtGox reported a drop in value all the way down to 140 USD today, a loss of almost half in real value. With many sites unreachable or slow, there are also news of a possible DDoS attack on MtGox: 'Attackers wait until the price of Bitcoins reaches a certain value, sell, destabilize the exchange, wait for everybody to panic-sell their Bitcoins, wait for the price to drop to a certain amount, then stop the attack and start buying as much as they can. Repeat this two or three times like we saw over the past few days and they profit.'"

Bruce66423 writes "The BBC reports that Mt.Gox, the main exchange dealing with Bitcoins, has been attacked, and other resources are off line. A scary reminder of how insecure ALL money is in the computer age..." Also at TechWeekEurope. A message at bitcoin storage service Instawallet's site begins "The Instawallet service is suspended indefinitely until we are able to develop an alternative architecture. Our database was fraudulently accessed, due to the very nature of Instawallet it is impossible to reopen the service as-is."

Beardydog writes "Bitcoin trading site MtGox.com has suspended operations for the rest of the day after illicit access to at least one account resulted in a steep drop in the price of Bitcoins on the site. Commenters to the support page for the event are reporting that a list of usernames and associated email addresses and password hashes have been posted online. MtGox are currently planning to roll back all of the day's trading, email notices to all affected users, and require replacement passwords for affected accounts."

IamTheRealMike writes "The BitCoin peer to peer currency briefly reached exchange parity with the US dollar today after a spike in demand for the coins pushed prices slightly above 1 USD:1 BTC. BitCoin was launched in early 2009, so in only two years this open source currency has gone from having no value at all to one with not only an open market of competing exchanges, but the ability to buy real goods and services like web hosting, gadgets, organic beauty products and even alpaca socks."