DHS network intrusion was twice ruled a false positive before breach confirmed

Department of Homeland Security personnel twice dismissed signs of cyber intruders inside the agency’s Homeland Security Information Network as harmless activity, allowing hackers to remain undetected inside for weeks and eventually steal credential files, according to an internal incident readout viewed by Nextgov/FCW.HSIN was breached about two months ago, Nextgov/FCW first reported in late June. The network houses sensitive, unclassified data that’s shared between federal, state,