Saudi Hackers
The most important attacks by Saudi hackers were aimed on Israeli sites, triggering a competition between Saudi and Israeli hackers in 2012:
Everything you need to know about the ongoing [in 2012] Israeli-Saudi hacker struggle
A reaction of a Saudi hacker:
An interview with this Saudi hacker:
A chat with the teen Saudi hacker
But there are also attacks on other sites (or objects):
Saudi hacker compromise Undead Labs Forum
An alleged attack on the e-mail accounts of Bashir al-Asad:
http://www.ammonnews.net/article.aspx?articleno=109901
http://www.alfajertv.com/news/34667.html
An attack on the Iraqi newspaper al-Nahar retaliating for critique of Saudi religious scholars:
http://www.m3n4.com/worldnews/138851
Saudi hacker hacked an ad board:
A nice video boasting the excellence of Saudi hackers:
Sometimes even hackers die: