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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

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Feb 25

Secretary of Homeland Security Alejandro N. Mayorkas announced the release of the funding notice for eight different types of preparedness grants worth nearly $1.87 billion. Together, these programs provide more than $1.8 billion in critical funding to assist our state and local partners in building and sustaining capabilities to prevent, protect against, respond to, and recover from acts of terrorism and other disasters.

Feb 22

Secretary Alejandro N. Mayorkas announced the many ways the Department of Homeland Security (DHS) will carry out President Biden’s vision to elevate cybersecurity across the government.  DHS will lead efforts to mitigate risks to the United States, further strengthen its partnerships with the private sector, and expand its investment in the infrastructure and people required to defend against malicious cyber attacks as part of a whole-of-government effort.

Feb 5

Secretary Mayorkas spoke by phone with Puerto Rico Governor Pedro Pierluisi. his was the Secretary’s first call to a U.S. Governor since being sworn-in on February 2.

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