War in the Middle East and political extremism within the United States mean there is a high threat of terrorism within the ...

Homeland Security Secretary Alejandro Mayorkas spoke with Face the Nation moderator Margaret Brennan on FEMA misinformation ...

The following is a transcript of an interview with Homeland Security Secretary Alejandro Mayorkas on "Face the Nation with ...

The threat environment in the United States “remains high” ahead of the November presidential election and conflict in the ...

SIAs are noncitizens who are “known or evaluated to possibly have a nexus to terrorism” and pose a national security risk.

A foiled election day terror plot, public warnings from the British intel chief, and deportations of ISIS-tied migrants show ...

After two attempted assassinations and an ongoing threat from Iran, Donald Trump’s campaign has ramped up requests for ...

Federal authorities have successfully deported some of the eight Tajik migrants suspected of having ties to ISIS and plotting ...

A Department of Homeland Security threat assessment report released Wednesday warned of threats to the border, the election ...

IoT Is Fundamental to Infrastructure Security, but there are abundant risks and challenges facing by IoT, such as user data ...

Follow the latest Cyber Security news stories and headlines. Get breaking news alerts when you download the ABC News App and subscribe to Cyber Security notifications.