CISA works with partners to defend against today’s threats and collaborate to build a more secure and resilient infrastructure for the future. Read CISA's Fact Sheet to learn more. We lead the national effort to understand, manage, and reduce risk to our cyber and physical infrastructure. A secure and resilient critical infrastructure for the American people. “The blue outer ring and the inner red ring indicate CISA’s unity with DHS and a nod to our efforts to cut through government red tape, while the three blue lines in the outer ring represent the Agency’s three congressionally mandated missions: cybersecurity, infrastructure security, and emergency communications.

October 29, 2025 - The Cybersecurity and Infrastructure Security Agency (CISA) is a component of the United States Department of Homeland Security (DHS) responsible for cybersecurity and infrastructure protection across all levels of government, coordinating cybersecurity programs with U.S. states, and improving ...

The Cybersecurity and Infrastructure Security Agency (CISA) announced the release of Thorium, an automated platform that allows cyber defenders at lightning speed to assess and combat malware threats in a way that has not been possible before.

CISA is one of the newest federal agencies, established as an independent operational component of DHS in 2018 through the expansion of DHS’s National Protection and Programs Directorate (NPPD).

January 15, 2025 - Brief history: originating as DHS’s National Protection and Programs Directorate (NPPD), the 2018 Cybersecurity & Infrastructure Security Agency Act instituted CISA as an operational component of DHS.

September 29, 2025 - WASHINGTON – Today, the Department of Homeland Security (DHS) and the Cybersecurity and Infrastructure Security Agency (CISA) announced the official beginning of Cybersecurity Awareness Month 2025. This national campaign, administered by CISA, will give partner agencies and the private sector ...

The HSDL is part of the Naval Postgraduate School Center for Homeland Defense and Security and is sponsored by the U.S. Department of Homeland Security’s National Preparedness Directorate, FEMA. For more information, contact the Emergency Services Sector Management Team at [email protected] or visit CISA | Emergency Services Sector.

CBP's priority mission is to keep terrorists and their weapons out of the U.S. CBP also secures and facilitates trade and travel while enforcing regulations, including immigration and drug laws. ... CISA leads the national effort to understand, manage, and reduce risk to our cyber and physical infrastructure.

1 week ago - We play a vital role in protecting the homeland. Please visit our official website (cisa.gov) to learn how you can contribute to our mission. Review our full Comment Policy: cisa.gov/comment-policy Review DHS LinkedIn Privacy Policy: dhs.gov/linkedin-privacy-policy-and-notice

May 28, 2024 - In an era where the digital landscape ... Cybersecurity and Infrastructure Security Agency (CISA), operating within the United States Department of Homeland Security (DHS), stands as a sentinel against these threats....

October 9, 2025 - Hundreds of workers within the Cybersecurity and Infrastructure Security Agency (CISA), who were engaged in issuing alerts about threats against US agencies and critical infrastructure, have been shuffled and reassigned to agencies such as Immigration and Customs Enforcement, Customs and Border Protection, and the Federal Protective Service, according to Bloomberg.

Cybersecurity and Infrastructure Security Agency: America's Cyber Defense Agency

March 10, 2023 - The Cybersecurity and Infrastructure ... secure and resilient infrastructure for the future. ... United States – Department of Homeland Security Cyber and Infrastructure Security Agency (DHS/CISA)...

Menu · The Cybersecurity and Infrastructure Security Agency (CISA) defends critical infrastructure against threats. Cybersecurity and Infrastructure Security Agency · 1-888-282-0870 (cybersecurity resources) [email protected] ·

November 13, 2018 - On November 13, the United States House of Representatives voted unanimously to pass legislation creating the Cybersecurity and Infrastructure Security Agency (CISA) within the Department of Homeland Security (DHS).

This mission requires effective coordination and collaboration among a broad spectrum of government and private sector organizations. ... CISA operates within the Departmnent of Homeland Security (DHS).

November 14, 2023 - Line of Effort 4: Collaborate and communicate on key AI efforts with the interagency, international partners, and the public. CISA will contribute to DHS-led and interagency efforts, including developing policy approaches for the U.S. government’s overall national strategy on cybersecurity ...

May 7, 2024 - The U.S. Department of Homeland Security (DHS) and the Cybersecurity and Infrastructure Security Agency (CISA) announced on Monday changes to the Cyber Safety Review Board (CSRB) membership.

November 21, 2018 - Congress has passed the Cybersecurity and Infrastructure Security Agency Act of 2018, which calls for a new standalone cybersecurity agency to be created within DHS, consolidating cybersecurity and physical infrastructure security in a single agency.

As the National Coordinator for critical infrastructure security and resilience, CISA stands ready to help America prepare for and adapt to changing risk conditions and withstand and recover rapidly from potential disruptions, regardless of cause. ... Open source software is part of the foundation of the digital infrastructure we all rely upon.