The FBI is investigating after several websites in the US were hacked by someone claiming to be from ISIS . Websites including a racecar speedway in the state of Ohio , a cocktail bar in Massachusetts , a Goodwill center in Missouri and a church in Canada were defaced with the radical group 's black flag . Attacks against similar low-profile websites were also recorded in Montana , New York , Massachusetts and Minnesota , NBC reported . Hacked : The ISIS imagery started appearing on various websites including the Southwest Montana credit union . The hacking has spread to Europe with the Dublin Rape Crisis Centre in Ireland the latest site to have its homepage topped by a picture of the black ISIS flag and the words 'hacked by ISIS , we are everywhere . ' A Flash audio plugin played what appeared to be a song in Arabic . Eldora Speedway General Manager Roger Slack told WLWT of Cincinnati : 'All of a sudden , our website was taken over by a hacker that took over a header stating that the website was now under the control of the Islamic State , ' The FBI said it was aware of the incidents and 'is contacting the impacted parties ' though experts believe it is likely to be a hoax . Bad taste : Moerlein Lager House ( left ) and Dublin rape crisis were two of several websites hacked and daubed in ISIS message . The FBI are investigating although many think it is a hoax . Evan Kohlmann of Flashpoint Intelligence , told NBC : 'There are no indications that the individuals behind these latest hacks have any real connection to ISIS , and these defacements have taken place amid a spate of recent attacks where ordinary hackers have cynically used far-fetched references to ISIS as a means of attracting media attention . ' Southwest Montana Community Federal Credit Union 's site has remained down , with the message 'Under Construction . ' Chief executive , Tom Dedman , said the site was offline so a security specialist could investigate . The hacks over the weekend appeared on websites with little or no link to one another , fueling speculation the terrorist organisation was not responsible . Silver Bow County Sheriff Ed Lester told station KTVM of Butte that no account information was compromised . He said : ' I do n't think ISIS agents would be interested in a hack like this , ' Lester said . ' I think this is more likely a domestic hacker rather than international cyberterrorism . '
ISIS investigating after several websites defaced with ISIS imagery . Websites targeted appear to have no links to one another . Experts believe cyber attacks are a hoax by a domestic hacker .