The do-it-yourself model was professionalized and has been really deployed around the world by ISIS, inspiring dozens of people to carry out attacks in their name,” one expert tells NBC News.

Deadly Syria attack kills two U.S. service members, intensifying pressure on Trump to reassess counter-ISIS strategy and partnership with Ahmed al-Sharaa.

Last Saturday, an Islamic State infiltrator ambushed a meeting between American soldiers and their local counterparts in a Syrian desert town. Two members of the Iowa National Guard and a U.S. civilian interpreter were killed in the assault—whose perpetrator may or may not have known that the subject of the meeting was how to counter ISIS.

ISIS attacks over the past week in Australia and Syria have led some to wonder whether the Islamist terrorist organization, once also known as the Islamic State, is making a comeback. “Actually,” says Bruce Hoffman, “it never went away.”

Canadian police say Waleed Khan faces terrorism charges for allegedly conspiring with ISIS and committing hate crimes targeting Jewish community in Toronto.

The police found two homemade Islamic State flags in the car of the suspects, a 50-year-old man and his 24-year-old son.

The suspects alleged to have carried out the deadly mass shooting at Sydney's Bondi Beach may have been inspired by ISIS or provided actual training to help carry out the attack, experts of the militant group say.

One of three men charged by Toronto and Peel police with targeting women and members of the Jewish community was allegedly working with ISIS to plan deadly terror attacks, the RCMP said in a release on Friday.