North Korea as a country is pretty locked down, to say the least. However, that doesn’t mean that people don’t have access to modern technology — it’s just that their modern technology looks pretty different to ours. For example, some people may have access to a computer; it will just be running the country’s Red Star OS, rather than Windows or Mac.

Others also have access to smartphones. That said, these things aren’t connected to the internet — and as this video shows, there are a lot of quirks about what you can see and what you can say.

@bbcnews North Korea is fighting an information war, as South Korean films, TV dramas, pop songs and news are smuggled over the border in a bid to challenge the country’s propaganda. A North Korean mobile phone, smuggled out of the country late last year, shows how the regime is cracking down. #NorthKorea#SouthKorea#KimJongUn#Military#Internet#KDrama#KPop#News#BBCNews♬ original sound - BBC News