Whom to believe? There are stories pointing the blame on North Korea for hacking/cyber attack into Sony pictures and also stories with titles of North Korea denying. Below are some of the news stories which generate some amount of confusion:
1 . North Korea denies hand in Sony hacking as US cries foul
News source: http://www.firstpost.com/world/north-korea-denies-hand-in-sony-hacking-as-us-cries-foul-1978727.html
2. US insists North Korea must take Sony hack blame
News source: http://www.bbc.co.uk/news/world-us-canada-30562029
3. North Korea denies hacking Sony, US stands by its assertion
New Source: http://economictimes.indiatimes.com/news/international/business/north-korea-denies-hacking-sony-us-stands-by-its-assertion/articleshow/45592578.cms
4. North Korea dismisses cyber attack allegations as 'groundless slander'
New Source: http://www.dnaindia.com/world/report-north-korea-dismisses-cyber-attack-allegations-as-groundless-slander-2045850
5. North Korea proposes joint Sony hack inquiry with US
New Source: http://www.bbc.co.uk/news/world-us-canada-30560712
What’s clear is Japan lacks in building its own software infrastructure, not even a popular OS designed by Japanese company. Even South Korea's electronics and IT industry share same weak point. Samsung is heavily dependent on Android OS for its smart phone market success.