Mt. Gox CEO's blog goes blank after alleged hack
Hackers claim internal records show Mt. Gox has more bitcoins than it claims it lost
IDG News Service - Hackers attacked the personal blog of Mt. Gox CEO Mark Karpeles on Sunday and posted what they claim is a ledger showing a balance of some 950,000 bitcoins based on records they obtained from the defunct exchange for the virtual currency.
They said the sum contradicts Mt. Gox's claim in a Japanese bankruptcy protection filing Feb. 28 that it had lost about 850,000 bitcoins.
Neither Karpeles nor Mt. Gox officials could immediately be reached to verify the claims.
Karpeles has maintained a low profile since the filing in Tokyo District Court. Mt. Gox, which pulled the plug on its website three days before the court filing, had announced that about 750,000 customer bitcoins it held are missing along with 100,000 of its own bitcoins and $27.3 million in customer deposits.
Karpeles' blog was titled "Magical Tux in Japan -- Geekness brought me to Japan!" Karpeles, who is French, often used the nickname "MagicalTux" when posting on public message or chat forums. His blog went offline Sunday shortly after it was attacked.
Karpeles did not immediately answer a query sent to his personal email address.
The attackers claim to have obtained database records containing transaction details from Mt. Gox. They wrote they purposely withheld users' personal data. Mt. Gox had as many as 1 million customers as of December.
The data included a screenshot of what appears to be an internal SQL database administration tool, Karpeles' CV and a Windows executable called "TibanneBackOffice," among many others. Mt. Gox is a subsidiary of Tibanne, a company owned by Karpeles.
The release of the data adds to the mysterious circumstances around Mt. Gox, which at one time was the largest exchange for buying and selling bitcoin.
Mt. Gox's demise has enraged its out-of-pocket customers as efforts continue to derive clues from bitcoin's public ledger, called the blockchain, that might indicate the fate of its virtual currency holdings.
Mt. Gox in part blamed a security issue called transaction malleability for its bitcoin losses. In some instances, transaction malleability can allow an attacker to manipulate transaction identification numbers in order to steal bitcoins.
The long-known security problem is being addressed by the custodians of bitcoin's core software who've said it is usually only an issue if a bitcoin exchange has not coded its own software correctly.
Meanwhile, intense efforts are underway to analyze the blockchain to figure out where large stashes of bitcoins once held by Mt. Gox may have been transferred.
The blockchain records the movement of bitcoins from a user's public bitcoin "address" or "wallet," which is a 32-alphanumeric character. It is possible, for example, to attribute addresses to a person or company based on past transfers.
- Platfora Big Data Analytics for Network Security Platfora amplifies the effectiveness of network security analysis, providing Big Data Analytics capability to augment existing security infrastructure for known threats, and advanced...
- SANS: Next-Generation Datacenters = Next-Generation Security This whitepaper takes a look at some new technology that may allow security teams to implement more flexible and capable protection models in...
- SANS: Protecting Virtual Endpoints with McAfee Server Security Suite Essentials SANS review of McAfees Server Security Suite Essentials that address some of the emerging challenges of securing virtual platforms and cloud environments.
- Safeguarding the Next-Generation Data Center Use of virtual and cloud servers has exploded. Unfortunately, security often lags behind. McAfee recommends looking at innovative solutions in order to erect...
- Is SQL Server AlwaysOn really as powerful? Tips and Tricks from the field With the introduction of AlwaysOn, Windows Clustering Services is now more critical than ever.
- What Does it Take to Deliver a Superior Customer Experience? The Two Top-Rated Online Retailers, B&H Photo and Crutchfield Electronics, Share Their Secrets Discuss practical CX tools and service methods such as contact center agents and the use of realtime speech analytics to help contact center... All Cyberwarfare White Papers | Webcasts