I suspect one of my hires may have been North Korean. He passed all the interviews and asked for less compensation than the others, so we hired him. He avoided calls but otherwise did excellent work for about a week — until our KYC and payroll provider flagged him as a fraud.
Our HR always wanted us to do that, but I used to push back.
The company I worked for (as a hiring manager), paid fairly low wages, and expected employees to stay around for a long time, so I often judged candidates by more than “on paper” qualifications.