You missed my point. They may appear that they have a decent cyber unit. But we know from their missile tests that were utter failure that is probably more than a wish than a reality.
In US, NSA hires talented hackers/programmers, as their skills are already established. For that to work, they need all population to have access to the internet.. So how does NK does same when they forbid the internet to the masses? Even if they had prospective talent, they would not be able to recognize them.