Dr Hamadoun Toure The UN has urged countries to seek a "peaceful resolution" in cyberspace to avoid the threat of global cyberwar.
The comments by the head of the UN's telecommunications agency came a week after Flame, one of the most complex cyber-attacks to date, was uncovered.
Dr Hamadoun Toure told the BBC that he did not suspect the US of being behind the attack.
He added that developing countries were being helped to defend themselves more adequately against threats.
Giving his first public interview about the attack, Dr Toure said the UN's International Telecommunications Union (ITU), which co-ordinates the sharing of communication infrastructure across the world, had been following the threat since May.
He said he did not consider Flame to be an act of cyberwar.
JERUSALEM (AP) - Israel's military says it has identified cyberspace as a strategic battlefield and is prepared to go on the offensive. The military's website reported this week that that the army has defined its "operational methods" in cyberspace. It said the military has "relentlessly" defended its cyberspace. "Additionally, if necessary, the cyberspace will be used to execute attacks and intel...