Saudi Arabias national oil company, Aramco, said December 9 that a cyberattack against it in August that damaged some 30,000 computers was aimed at stopping oil and gas production in Saudi Arabia. The attack on Saudi Aramco — which supplies a tenth of the worlds oil — failed to disrupt production, but was one of the most destructive hacker strikes against a single business.
Hackers from a group called Cutting Sword of Justice claimed responsibility for the attack, saying that their motives were political and that the virus gave them access to documents from Aramcos computers, which they threatened to release. No documents were published. Aramco and the Saudi Interior Ministry were investigating the attack.
A ministry spokesman said the attackers were an organized group operating from countries on four continents. The attack used a computer virus known as Shamoon, which infected workstations on August 15.
The company shut its main internal network for more than a week. Shamoon spread through Aramcos 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.
Source: New York Times, http://www.nytimes.com/2012/12/10/business/global/saudi-aramco-says-hackers-took-aim-at-its-production.html?_r=0