That NKnews site is also American. I thought that something like this would be easy to verify, so I have tried to find a bit more information, and according to this site:

https://www.38north.org/2021/11/north-korea-intensifies-war-against-foreign-influence/

While the text of the law was not made public outside of the North, anecdotal reports since indicate that this has prompted a widespread crackdown on foreign content and influence in the country.

So, perhaps it is not as simple.