"Aside from a failed 2006 assault on the Abqaiq oil collection and processing facility, an amateurish attack in 2007 that killed three French citizens, and a foiled assassination attempt against Saudi Prince Mohammed bin Nayef in 2009, Saudi Arabia has been eerily quiet," Texas-based think tank Stratfor detailed.
It all changed in 2015 when terrorists affiliated with Daesh launched a bombing campaign in the kingdom's Eastern Province, mostly populated by the Shia. Since then, attacks have become more frequent and their geography is expanding, with many taking place in the capital and Sunni-populated areas.
Like al-Qaeda militants, Daesh "fighters could use their honed skills to conduct more complex and strategic attacks. Both groups have a history of attacking tourist attractions in Egypt and Tunisia to undermine those nations' economies. A more sophisticated Islamic State campaign might echo previous al-Qaeda initiatives, targeting expatriates to impair the Saudi economy," the analysts warned.
Daesh presents a "growing menace" to Saudi Arabia, but there is an additional challenge – al-Qaeda's deadliest offshoot, al-Qaeda in the Arabian Peninsula (AQAP). This is the group that claimed responsibility for the January 2015 attack on the French satirical magazine, Charlie Hebdo.
The truce between Riyadh and AQAP collapsed in late April, fueling concerns that the group that is primarily active in Yemen and Saudi Arabia could launch a terrorist attack in the oil kingdom.
AQAP, according to the analysts, "could draw on its increased might to relaunch efforts to export terrorism to Saudi Arabia. Since Saudis have always constituted an important component of AQAP, the group could try to use its ties in the kingdom to facilitate new attacks."