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

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

The Department of Homeland Security (DHS) issued a heightened terrorism advisory Sunday, warning that recent U.S. airstrikes on Iranian nuclear facilities ...

Ayotte's office said she plans to stay in close contact with the Department of Homeland Security, regardless of whether ...

A new bulletin from DHS warns Americans of increased threats after U.S. strikes on Iran, and outlines what could happen next.

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

The Secretary of Homeland Security Kristi Noem issued a National Terrorism Advisory System regarding a heightened threat ...

Lawmakers and locals are reacting after Saturday's strikes on nuclear facilities in Iran by the United States.

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

ABC News’ chief justice correspondent Pierre Thomas discusses how the U.S. missile strikes in Iran could impact the American people.

We’re overdue for a conversation about the Trump administration’s capacity to deal with what Homeland Security called a “heightened threat environment.” ...

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