I love this article. It seems like it is lifted directly from a series of LinkedIn posts I shared about my experience with North Korean job scammers. I also wrote a quick guide on how to protect yourself. Link to LinkedIn post in the blog post below.
https://koliber.com/articles/how-to-avoid-hiring-a-north-kor...
It’s a bit more in-depth and offers a few other ways to identify the fake devs.