A subway worker stands at the end of escalators in Pyongyang, North Korea. Photo: Reuters, Damir Sagolj

To no one’s surprise, researchers in Germany have found the operating system of North Korean tablet Ullim to come with sophisticated surveillance features and user restrictions. 38 North wrote that the device comes with a background program called “Red Flag” which takes a screenshot every time an app is opened, records browser history and reboots the machine if the operating system is altered. The tablet is also limited to only installing apps included on a white list. Observers lament that the features of the device spell trouble for activists hoping to use technology to spread information in what is perhaps the most closed society in the world today.