North Korea's 'paranoid' computer operating system revealed

Hamburg conference hears that Red Star intranet allows Pyongyang to control citizens' access to websites

North Korea's homegrown computer operating system mirrors its political one - marked by a high degree of paranoia and invasive snooping on users, according to two German researchers.

Their investigation, the deepest yet into the country's Red Star OS, illustrates the challenges Pyongyang faces in trying to embrace the benefits of computing and the internet while keeping a tight grip on ideas and culture.