A senior official says Iran is taking legal action against the US over repeated cyber attacks and threats, while it is putting in place robust security measures to protect its vital infrastructure.

Axar.az reports citing foreign media.

"The Americans have repeatedly threatened and mounted cyber attacks against us," said Gholamreza Jalali, the head of Iran's Civil Defense Organization which is in charge of cyber security.

"The legal implications of such actions could naturally affect them and Iran is seriously following up the issue at its juridical and foreign ministry capacities," he told Tasnim news agency Sunday.

In 2010, Iran discovered Stuxnet, which is widely believed to have been developed by the United States and Israel to attack a uranium enrichment facility at Natanz nuclear site.

Last month, US media reports said the United States was considering possible cyber attacks against Iran after the Sept. 14 attacks on Saudi oil sites which Washington was quick to blame on Iran without evidence.