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

The theft from Binance could be the biggest theft of any kind in history. We answer some key questionsNorth Korean group blamed for $6.3bn crypto heistTell us: have you been affected?The world’s largest cryptocurrency exchange has been hit by a $6.3bn heist that, according to experts, is likely to be the work of North Korea.This is not the first time…