How big a deal is the $6.3bn crypto heist, who did it, and are investments safe?

Binance, the world's largest cryptocurrency exchange, has suffered a $6.3bn heist, which experts believe is the work of a North Korean group. This event may represent the biggest theft of any kind in history. The rogue state has a documented track record of targeting crypto markets. Investigations suggest that the security breach may have been facilitated through an engineer's laptop. This incident raises significant questions regarding the safety of investments within the cryptocurrency market.