Kim Jong-un's big hit: so was the biggest cyber theft in history

The CEO of the Bybit cryptocurrency change portal, Ben Zhou, made a series of routine transfers from his home computer. After a while, he was called by his company to tell him that his Ethereum reserves, the second most used cryptocurrency after Bitcoin, had disappeared, worth $1.5 billion (about 1.4 billion euros to change). By then, the ethers had already transferred to thousands of other digital wallets. They had just suffered the biggest the…