The massive cryptocurrency heist from Tokyo-based virtual exchange Coincheck Inc. last week was even larger than initially reported, according to online records reviewed Wednesday by Kyodo News.Coincheck initially said that 523 million XEM, worth $532.6 million at the time, had been stolen from its wallet -- the largest-ever theft of cryptocurrency by hackers. But the actual amount taken was 526.3 million XEM, according to the blockchain, an online ledger of such transactions.XEM is a unit of NEM, the world's 10th largest cryptocurrency platform by market capitalization.A Coincheck official…READ FULL ARTICLE