The Desk: A hacking collective calling itself the “Cyber Caliphate” that claims to be affiliated with the Islamic State militia is actually a lone hacker from Algeria with no connection to the terrorist group, The Desk has learned.

The revelation came following the compromise of a Twitter account used by Newsweek magazine on Tuesday. The attack was said to have been done in the name of the “Cyber Caliphate,” a group that has targeted other news organizations over the past few months in the name of the Islamic State.

But The Desk has learned the attacks are actually conducted by a lone Algeria-based hacker who goes by the alias “Poti Satz.” The hacker was once affiliated with a collective known as “Team System Dz,” which was active for a few months in 2014 before going dark in October.