Some of the methods include:
I. Use of Explosive Devices- Various explosive devices can be delivered through various vehicles or by various people. Suicide bombers also carry detonating devices in the vicinity of the target. The detonating devices can be concealed in any part of the body. In some past incidents, terrorist have known to hide these detonating devices in theor shoes.
II. Shootings- Shootings is the most used method of attack by various terrorist groups and also by ISIS. They have orchestrated a number of shootng attacks in the past targeting civilians of many countries.
III. Kidnapping- ISIS has been known to actively kidnap western civilians for financial gains. They have also released a number of videos which demonstrates their strengths over the hostages.
IV. Biological, Chemical and Radiological devices- This is a rare method of attacks but some cases have displayed that the use of ricin. Ricin is a poisonous substance which when mixed with water can kill many