Anonymous launched a series of cyber attacks against government websites of Saudi Arabia to protest the execution of 47 people, including Mr. Sheikh Nimr Al Nimr. The attacks are executed as part of the operations #OpSaudi and #OpNimr. The attacks shut down the official website of the Ministry of Defense, the Royal Air Force, Saudi Ministry of Education and the Saudi Press Association, the Saudi Defense ministry website and the General Passports Service. The websites have been already restored, but the websites were already restored.”]
Source: http://securityaffairs.co/wordpress/44678/hacking/anonymous-vs-saudi-arabia.html