About 99 percent of the bitcoins that disappeared from a virtual currency transaction system operated by Mt. Gox may have vanished due to fraudulent transactions, not from cyber-attacks as the company initially claimed, The Yomiuri Shimbun has learned. The Metropolitan Police Department has been investigating the case in which about 650,000 bitcoins — worth about ¥24.7 billion as of Wednesday — went missing from Mt. Gox’s online exchange system, which is currently undergoing bankruptcy procedures. Police concluded that about 7,000 bitcoins disappeared due to cyber-attacks, only about 1 percent of the total bitcoins ... (full story)