NK is one of the most exceptionally successful aggressors in cyber crime. They perform heists in the 10s or 100s of millions of USD at a time, about 2 billion in the past two years. Their targets are global and indiscriminate, and their scope and skill set is growing at an alarming pace.

If it helps you sleep better at night that they’re only physically terrible to their local neighborhood, then whatever - I would argue that their reach is only limited by their lack of wealth, but that still has a radius that can reach nations as far away as Japan and they constantly threaten them, and would do so to others if they had the means, but again, if that doesn’t bother you then ok I guess.

But to say that they don’t affect anyone outside their borders is at best ignorance and at worst willful misinformation.