U.S. flag

An official website of the United States government

Government Website

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Safely connect using HTTPS

Secure .gov websites use HTTPS
A lock () or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.


  1. Home
  2. Topics


Below are a variety of topics handled by the Department of Homeland Security.

  • Border Security

    Protecting U.S. borders from the illegal movement of weapons, drugs, contraband and people, while promoting lawful trade and travel.

  • Citizenship and Immigration

    DHS plays a central role in administering the immigration system of the United States.

  • Cybersecurity

    Our daily life, economic vitality and national security depend on a stable, safe and resilient cyberspace.

  • Disasters

    Whatever the disaster, FEMA leads the federal government’s response as part of a team of responders.

  • Economic Security

    DHS works with international partners and the private sector to secure global systems of travel and trade.

  • Election Security

    A secure and resilient electoral process is a vital national interest and one of our highest priorities at DHS.

  • Homeland Security Enterprise

    DHS’s goal is simple: one DHS, with integrated, results-based operations.

  • Human Trafficking

    Human trafficking is a crime and a form of modern-day slavery involving the exploitation of children and adults.

  • Immigration and Customs Enforcement

    Focusing on smart enforcement, humane detention, preventing terrorism, and combating the illegal movement of people and goods.

  • Preventing Terrorism

    Protecting the American people from terrorist threats is the reason DHS was created, and remains our highest priority.

  • Resilience

    DHS works with all levels of the government to fight against and recover from attacks, accidents, natural disasters and threats.

  • Science and Technology

    S&T is the primary research and development arm of DHS, providing federal, state and local officials with technology to protect the U.S.

  • Transportation Security

    TSA employs a risk-based strategy to secure U.S. transportation systems, working closely with stakeholders, as well as law enforcement and intelligence partners.

Last Updated: 06/11/2024
Was this page helpful?
This page was not helpful because the content