Former UK home secretary David Blunkett has said that the recent spate of cyber attacks on Sony were orchestrated by North Korea.
Speaking at the ISC2 Security Congress in London, Blunkett dismissed claims by North Korea that the attacks were carried out by "friends" of the country, not the nation itself.
"North Korea doesn’t have any friends outside North Korea. North Korea is involved in what is happening with Sony," he said at the event, attended by V3.
"Sony's difficulties over the last couple of years are clearly down to a desire to sabotage their operations and are doing so quite efficiently."
Blunkett added that, while Sony has been in the spotlight, other businesses face similar risks on a regular basis.
"Many companies are being damaged on a daily or monthly basis without people hearing about it," he said.
Blunkett, who is chairman of the International Cyber Security Protection Alliance, said that this fact underlined a need for businesses to be more comfortable sharing cyber security information.
"It is really important we have an understanding and share information about what is taking place, and have a willingness to share it," he said.
"I understand why companies feel that reputation damage will increase if they are honest, but I think companies could make it a reputation feature that they are clear and open about the dangers they face, and what they are doing to prevent it."
Blunkett also touched on the fallout from the Snowden revelations, calling Snowden a "traitor and a thief", and saying that, while debate about the extent of monitoring by governments is important, such data gathering had to take place.
"If we don’t have the debate we don’t have democracy, but the idea that nation states should not protect themselves, businesses and the economy is frankly risible," he added.
"The debate has to be about what is acceptable, what measures are legitimate and how we ensure that resilience does not interfere with legitimate privacy concerns."
Blunkett mentioned his own experience of monitoring, relating a story from 2011 about how he discovered the French government monitoring his emails as staff at the Home Office were not using encryption tools.
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