The Saudi's got hacked. Big time. According to Saudi Aramco, the state run oil company, a cyber attack against its computers back in August damaged some 30,000 computers. The apparent target was bringing down the country's oil and gas production, halting exports of such products from the largest exporter in the world.

According to Reuters, the attack on Saudi Aramco — which supplies a tenth of the world’s oil — failed to disrupt production, but was one of the most destructive hacker strikes against a single business.

“The main target in this attack was to stop the flow of oil and gas to local and international markets and thank God they were not able to achieve their goals,” Abdullah al-Saadan, Aramco’s vice president for corporate planning, said on Al Ekhbariya television.

The attack used a computer virus known as Shamoon, which infected workstations on Aug. 15. The company shut its main internal network for more than a week. General Turki said the investigation had not shown any involvement by Aramco employees. He said he could not give more details because the investigation was not complete.

Shamoon spread through Aramco’s network and wiped computers’ hard drives clean. Aramco said damage was limited to office computers and did not affect systems software that might harm technical operations.