Sources told NBC News Iran sent a communication to President Trump last week, threatening to activate sleeper-cell terror ...

Secretary Kristi Noem and the Department of Homeland Security announced $94 million in federal grants to over 500 ...

The Department of Homeland Security issued an advisory June 22 warning Americans cyber attacks are likely, and violence in ...

PORTLAND, Oregon — Homeland Security officials have issued a national terrorism bulletin warning of a “heightened threat ...

The United States is warning of a “heightened threat environment” after President Trump ordered strikes on three Iranian ...

DHS warned officials to be on the lookout for Iranian-led attacks over the next three months by terror cells inspired to ...

The U.S. Department of Homeland Security (DHS) warned over the weekend of escalating cyberattack risks by Iran-backed hacking ...

Law enforcement agencies around the United States are now on high alert for potential acts of terrorism following the ...

After U.S. airstrikes on Iran’s nuclear sites, Missouri Gov. Mike Kehoe said Homeland Security warned of potential cyber and ...