A group of hackers managed to breach Washington D.C.'s surveillance camera network and infect the system with ransomware days before President Trump's inauguration, law enforcement officials close to the investigation told Fox News. The network of cameras affected eight days before President Trump was sworn in included ones located along the inaugural parade route, officials said Thursday. Investigators were able to rid the system of ransomware without paying any money, and the network was fully operational on Inauguration Day. An investigation into the ransomware attack is ongoing and being run by the Secret Service, officials said. A separate law enforcement source described the cyber-attack to Fox News as emanating from overseas, and that investigators have not ruled out the possibility that this attack was carried out by a state sponsored actor.