The info about North Korea is likely comprised of speculation and/or anecdotes of NK escapees and UN observers. Corruption is not just bribery though, it's also

The info about North Korea is likely comprised of speculation and/or anecdotes of NK escapees and UN observers. Corruption is not just bribery though, it's also fraud, embezzlement, smuggling, etc. North Korea is printing millions of counterfeit US dollars and conducting illegal trade in arms and narcotics to fund its government and army and personally enrich their officials. NK also has a failed currency with a black market exchange rate that is about 30x higher than the official exchange rate, therefore almost every monetary transaction in North Korea is technically an act of corruption.