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Critical Infrastructure Security

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.

On November 16, 2018, President Trump signed into law the Cybersecurity and Infrastructure Security Agency Act of 2018. This landmark legislation elevates the mission of the former National Protection and Programs Directorate (NPPD) within DHS and establishes the Cybersecurity and Infrastructure Security Agency (CISA).  CISA coordinates security and resilience efforts using trusted partnerships across the private and public sectors, and delivers technical assistance and assessments to federal stakeholders as well as to infrastructure owners and operators nationwide.

For Infrastructure Security, CISA's main focus areas include:

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

Additional information

Last Published Date: July 14, 2020

Critical Infrastructure Security News & Updates RSS Icon

Nov 2

Throughout the pandemic, the Department of Homeland Security (DHS) has stood ready to assist communities across the nation in the fight against COVID-19.

Oct 26

For months, the Department of Homeland Security (DHS) has worked side by side with state, local, and private sector partners to ensure a safe and effective response to COVID-19 across its component offices.

Oct 16

The Department of Homeland Security (DHS) and its component offices have stood ready to assist communities across the nation that are facing unforeseen challenges amid a pandemic environment.

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