01 May 2010 – United States: Vehicle bomb fails to detonate in Times Square, New York City, as a street vendor notifies police of smoking vehicle; Tehrik-e-Taliban Pakistan claims responsibility for the attempted attack.
02 May 2011 – Pakistan: Osama Bin laden, leader of the terrorist group al-Qaeda and responsible for the 11 Sep 2001 attacks in the United States that killed nearly 3,000 people, is killed by US forces in Abbottabad.
06 May 2012 – Yemen: Fahd al-Quso, wanted in connection with 12 Oct 2000 attack on the USS Cole, killed in an explosion in Shabwah Governorate.
07 May 15 – United States: Authorities disrupt a plot to attack Fort Dix military base in New Jersey.
13 May 15 – Saudi Arabia: al-Qaeda bombs the Vinnell, al-Hamra and Ishbilyah housing compounds killing seven US citizens and 13 others, another 194 are injured.
14 May 1948 – Israel: Founding of the State of Israel.
Dates are taken from the NCTC terrorist calendar and 361 Security Significant dates.