(CNN) -- About 100 U.S. troops could be the target of ISIS on American soil.
A group known as the Islamic State Hacking Organization is calling for beheadings and attacks in the United States. They posted the purported names, pictures and home addresses of service men and women from all branches of the U.S. military, some of which were publicly available.
A Department of Defense official can not confirm the validity of this information. But, it's looking into the claim, stressing the safety of service members is always a concern.
Similar threats have been made before. This is a previously unknown group and its credible.