The attack on the networks of Sony Corporation was revealed in November. Almost immediately North Korea was blamed. Nobody in computer security circles took the accusations seriously. Now it appears that only a couple of weeks after the incident FBI is certain that North Korea was behind the attack.

Apparently, there were many traces of North Korea involvement left behind. So many, in fact, that it becomes reasonable to question the motivation of those who push the blame.

Attackers used computer servers in Bolivia, Cypress, Italy, Poland, Singapore, Thailand and the United States to attack Sony. The IP addresses associated with those servers have “previously [been] linked to North Korea” by the FBI. The malware used against Sony had what the FBI calls “lines of code” and “data deletion” methods similar to malware “North Korean actors previously developed.” The computer-wiping software used against Sony was also used in a 2013 attack against South Korean banks and news outlets, which the FBI attributed to North Korea. The malware was built on computers set to Korean language — unusual in the hacking world. Hackers demanded Sony Pictures pull “The Interview” to avoid starting a war over a movie.

Nobody in their right mind would execute a long term attack while leaving behind so many traces. Like in criminal stories, when something is too obvious, it may well be the planted evidence.

Political motivation is even more questionable. Sony is a private Japanese company. Why does the US government show such involvement? Obviously, they want an excuse to disconnect North Korea from the Internet or, even better, receive a pretext for a war against them. Obama already promised to strike back at North Korea “proportionately”, without waiting for any evidence of North Korea involvement in the act.

Too often, USA declares something to be true and uses their own statements as justification for waging economic and military aggression against other countries. Now it’s North Korea’s turn. I wouldn’t be surprised if the whole thing has been orchestrated and executed under the US command.