Is organ harvesting and trafficking common in Korea?

I'm currently watching Squid Game, and throughout the show, a common threat is made to take one's organs and sell them. Some of the guardss even have secret harvesting operations going on in both seasons. I'm aware that Squid Game serves as a sort of commentary on the culture of the country, so is this a common issue that they face over there? Do people walk around concerned that someone's gonna kill them for their liver?