Bitcoin billionaire Mike Novogratz has said the recovery of $3.6 billion stolen in a 2016 hack on the Bitfinex exchange is a positive sign for the crypto world, because it shows some of the merits of blockchain technology. The US Justice Department said Tuesday it had seized the majority of the money stolen in the $4.5 billion hack in 2016. It said officers had arrested two people, Ilya Lichtenstein, 34, and his wife Heather Morgan, 31, for an alleged conspiracy to launder cryptocurrency taken in the attack. Critics have long said that hacks and scams are a key reason to stay away from the cryptocurrency market. But ... (full story)