Digital Counterinsurgency How to Marginalize the Islamic State Online By Jared Cohen The Islamic State, or ISIS, is the first terrorist group to hold both physical and digital territory: in addition to the swaths of land it controls in Iraq and Syria, it dominates pockets of the Internet with relative impunity.... ... in late 2014, 46,000 Twitter accounts openly supported the group. Back then, strategies for fighting ISIS online centered on simply removing such accounts.... ... the gamut from popular public platforms to private chat rooms to encrypted messaging systems such as WhatsApp, Kik, Wickr, Zello, and Telegram... ... churn...