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. About DHS
  3. Site Links
  4. Keywords
  5. National Security

National Security

Last Updated: | Press Releases

HSI Tampa Investigation Leads to Forfeiture of $12 Million

WASHINGTON – A joint investigation by HSI Tampa and FBI Minneapolis led to a federal court ordering the forfeiture of nearly $12 million in funds from a petroleum sales company who created several shell companies to facilitate the continued illicit sale of Iranian petroleum products using the U.S. financial system in violation of U.S. sanctions.

Last Updated: | Press Releases

Chinese National, Legal Permanent Resident Charged for Exporting Controlled Data to China, Defrauding Department of Defense

WASHINGTON — Hang Sun, also known as Cody Sun, faces penalties of up to five years in prison for conspiracy; 20 years in prison for wire fraud; 20 years in prison for exporting technical data without a license; and 10 years in prison for smuggling goods from the United States.

Last Updated: | Press Releases

Raytheon Company to Pay Over $950M in Connection with Foreign Bribery, Export Control and Defective Pricing Schemes

NEW YORK — Raytheon Company entered into a three-year deferred prosecution agreement with the Department of Justice in connection with a criminal information unsealed today in the Eastern District of New York.

Last Updated: | Press Releases

DHS’ 2025 Homeland Threat Assessment Indicates the Threat of Domestic and Foreign Terrorism in the Homeland Remains High

DHS' 2025 Homeland Threat Assessment (HTA), released on October 2nd, is designed to inform both the public and the Department’s partners of the threats to public safety and security, in order to assist federal, state, and local partners in preparing, preventing, and responding to an ever-evolving threat environment.

Last Updated: | Press Releases

Massachusetts Man Indicted for Smuggling and Conspiracy to Commit Export Control Violations

BOSTON — Two men face charges for allegedly smuggling and conspiring to violate and evade export controls relating to the sale of laser equipment after their conspiracy was uncovered by HSI special agents and law enforcement partners.

Last Updated: | Blog

Safeguarding Our Agriculture and Food Supply

On National Agriculture Day, S&T recognizes the importance of agriculture to our communities and our national security.

Last Updated: | Press Releases

HSI Baltimore Investigation Leads to Guilty Plea for 20-Year Fugitive for Conspiring To Export Defense Equipment to Iran

Defendant evaded prosecution for 20 years - until his 2023 arrest in Rome.

Last Updated: | Blog

The Role of Science and Technology in Preparing for Future Change

Newly published papers offer a visionary look at the emerging threat landscape and opportunities on the horizon to tackle these threats head on.

Last Updated: | Press Releases

Joint Statement from the Departments of Justice and Homeland Security Assessing the Impact of Foreign Interference During the 2022 U.S. Mid-Term Election

DOJ, including FBI, and DHS, including CISA, released a report with key findings and recommendations from a classified joint report to the President issued earlier this year on addressing the impact of foreign governments and their agents on the security and integrity of the infrastructure relied upon in the 2022 U.S. federal elections.

Last Updated: | Publication

Key Findings and Recommendations: Foreign Interference Related to the 2022 US Federal Elections

​​​​​​This product provides a declassified overview of findings from a classified joint report from the Attorney General and Secretary of Homeland Security addressing the impact of activities by foreign governments and their agents targeting election infrastructure or infrastructure pertaining to political organizations, candidates, or campaigns used in the 2022 US federal elections on the security or integrity of such infrastructure. Pursuant to Executive Order (EO) 13848, the joint report relied on the Intelligence Community Assessment (ICA) addressing foreign threats to the 2022 US elections.