> It's just not as valuable if you pull the trigger all at once.
Not if they short-sell the car-manufacturer stock first! Granted, that might increase their odds of being caught, but attackers don't have to be wise to be dangerous.
Depending on what can be hacked, another possibility would be a string of suspiciously-smooth thefts.
I don't want to want to discount the possibility that this would be the ambitious endeavor of an actor with otherwise small-time-crook vibes, but I think it's more likely to be a nation state with bigger plans than getting rich.
Not if they short-sell the car-manufacturer stock first! Granted, that might increase their odds of being caught, but attackers don't have to be wise to be dangerous.
Depending on what can be hacked, another possibility would be a string of suspiciously-smooth thefts.