TOKYO -- Mark Karpeles, former CEO of Tokyo-based cryptocurrency exchange Mt. Gox, said lack of investment in security has left the industry vulnerable to attacks, even though eight years have passed since a high-profile bitcoin theft collapsed his exchange.
Two of the biggest crypto heists on record took place over the past year. One of them was revealed last week: More than $600 million worth of altcoins stolen from a network tied to the popular crypto game Axie Infinity.
