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Critical Infrastructure Security

Homeland Security starts with Hometown Security
Executive Orders on Protecting the Homeland
National Terrorism Advisory System
Active Shooter Preparedness
Responding to a Bomb Threat
Protective Service Advisors

 

Critical infrastructure describes the physical and cyber systems and assets that are so vital to the United States that their incapacity or destruction would have a debilitating impact on our physical or economic security or public health or safety.  The nation's critical infrastructure provides the essential services that underpin American society.

Managing Risk Through Collaboration

Critical infrastructure must be secure and able to withstand and rapidly recover from all hazards. Proactive and coordinated efforts are necessary to strengthen and maintain secure, functioning, and resilient critical infrastructure – including assets, networks, and systems – that are vital to public confidence and the Nation’s safety, prosperity, and well-being. This endeavor is a shared responsibility among Federal, state, local, tribal, and territorial entities, and public and private owners and operators of critical infrastructure.

Leading the National Effort

The Department of Homeland Security provides strategic guidance to public and private partners, promotes a national unity of effort, and coordinates the overall Federal effort to promote the security and resilience of the nation's critical infrastructure.

November is Critical Infrastructure Security and Resilience Month.

What can you do to make our Nation stronger and more resilient?

Electromagnetic Pulse and Geomagnetic Disturbances

Extreme electromagnetic incidents caused by an intentional electromagnetic pulse (EMP) attack or a naturally occurring geomagnetic disturbance (GMD, also referred to as "space weather") could damage significant portions of the Nation's critical infrastructure, including the electrical grid, communications equipment, water and wastewater systems, and transportation modes.

Last Published Date: October 9, 2018

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Nov 19

DHS S&T enables effective, efficient, and secure operations across all homeland security missions by applying scientific, engineering, analytic, and innovative approaches to deliver timely solutions and support departmental acquisitions.

Nov 13

Loose or loosening soil is often the culprit in weakening bridge stability. Thus, an instrument that can quickly assess the soil conditions around bridge pillars became a top priority for the Department of Homeland Security (DHS) Science and Technology Directorate (S&T), as well as state and local governments.

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