matter. andy gallagher has more from washington. >> this is a group calling itself the islamic state hacking division. they have not been verified. we don't know where the source is. they have clearly identified 100 u.s. military personnel - their names, in some cases their ranks and addresses. they are doing this so they can encourage lone wolf sympathizers to kill the people. i'll read a quote from the website. kill them in their own lands, stab them to death as they walk their own streets. it's something that is concerning to officials here and the group itself the islamic state hacking division says that what they did was hacked military sites to get the information, but people in the defense department think that may not be the case. much of this information, names and addresses was available on social media. some were in newspaper articles and many of the 100 personal are said to be involved in campaigns in iraq syria and yemen. this is something concerning