Japanese crypto exchange Coincheck, made famously after hackers made off with more than $400 million in digital token NEM, has been acquired. The company announced today (in Japanese) that Tokyo-based online brokerage Monex Group will buy it in full. The transaction will see Coincheck become a wholly owned subsidiary of Monex. The deal is a reaction of the NEM hack, with Coincheck recognizing that it needs to strengthen its management system and organization as a whole.