Blog Archives

Report: Researchers claim Mt.Gox could only have lost 386 BTC to transaction malleability

Posted on 27th March, 2014

In a research paper titled “Bitcoin Transaction Malleability and MtGox” posted to the arXiv archive yesterday, authors Christian Decker and Roger Wattenhofer determined that Mt.Gox could not have lost 850,000 bitcoins through a transaction malleability glitch in the site’s code. Instead, the researchers note that an attack of that scale has never taken place, and […]

Mt.Gox confirms the recovery of nearly 200,000 BTC from “old format” wallet

Posted on 21st March, 2014

In a media release posted late yesterday evening on the Mt.Gox website, the bankrupt bitcoin exchange announced that it had recovered “199,999.99” BTC from an “old format” wallet. According to the statement, the discovery was made on March 7 during an audit as part of their bankruptcy proceeding. The recovered bitcoins are worth $114 million […]

Report: Mt.Gox claims to have “found” 200k in lost bitcoin

Posted on 20th March, 2014

In a report published on Yahoo News’s Japan section, Mt.Gox has recovered nearly 200,000 BTC from a “lost” wallet dating back to 2011. The company’s lawyers claim that Mt.Gox found the wallet on March 7 during an internal investigation following their declaration of bankruptcy on Feb. 28. Few details about the recovery have been released, […]

Mt.Gox resumes access to user database

Posted on 18th March, 2014

In an update published yesterday on the Mt.Gox website, customers of the now-bankrupt exchange are now able to log in and view their account information. The interface appears to be a simple query system for the same database released by hackers earlier this month, and is currently limited to account balance information. Given the history […]

Japanese banking giant Mizuho added to Mt.Gox lawsuits

Posted on 17th March, 2014

Two lawsuits against bankrupt bitcoin exchange Mt.Gox added Japanese “megabank” Mizuho as to their filings on Friday. According to both suits, one in the U.S. and the other in Canada, the lack of due diligence by the bank was an inherent part of the alleged three-year fraud at Mt.Gox. As Mt.Gox’s bank, Mizuho held most […]

U.S. Court freezes assets of Mt.Gox CEO Karpeles

Posted on 12th March, 2014

In a temporary order issued yesterday in Chicago by U.S. District Judge Gary Feinerman, all U.S. assets held by both Mt.Gox and CEO Mark Karpeles are frozen for at least the next two weeks. Bloomberg reports that all “money and property belonging to the affiliate, its ultimate corporate parent, Tibanne KK, and principal Mark Karpeles” […]

Hackers demand .25BTC per user extortion not to release stolen Mt.Gox data

Posted on 11th March, 2014

Last week, hackers released a variety of potentially damaging internal Mt.Gox databases as well as a wallet-stealing virus disguised as a search tool. The hackers also claimed to have over 20 GB of Mt.Gox user data which they planned to sell “one or two times to make up personal loses from gox closure” for 100 […]

Mt.Gox files for U.S. Bankruptcy Protection

Posted on 10th March, 2014

Mt.Gox officially filed for U.S. Chapter 15 bankruptcy protection. Although Mt.Gox has already filed for bankruptcy in Japan, the U.S. filing will allow for additional cross-border protections under international law. With an outstanding debt of ¥6.5 billion and missing 850,000 BTC belonging to users the world over, the move to protect Mt.Gox’s U.S. assets is […]

Leaked Mt.Gox documents filled with wallet-stealing virus

Posted on 10th March, 2014

Yesterday, hackers gained access to the personal blog of Mt.Gox CEO Mark Karpeles (currently offline), using the space to release over 700 MB of data that appeared to come from the now-shuttered exchange’s internal database. The contents looked damning, hinting that Mt.Gox either had (or at least thought they had) nearly a million BTC in […]