Cybersecurity and Infrastructure Security Agency
Seal of CISA | |
Flag of CISA | |
| Agency overview | |
|---|---|
| Formed | November 26, 2018 |
| Preceding agency |
|
| Jurisdiction | United States Federal Government |
| Headquarters | Washington, DC, United States |
| Motto | "America's Cyber Defense Agency" |
| Employees | 3,641 (2025) |
| Annual budget | $3.0 billion (2025) |
| Agency executives |
|
| Parent department | Department of Homeland Security |
| Website | cisa |
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 government's cybersecurity protections against private and nation-state hackers. The term "cyber attack" covers a wide variety of actions ranging from simple probes, to defacing websites, to denial of service, to espionage and destruction.
The agency began in 2007 as the DHS National Protection and Programs Directorate. With the Cybersecurity and Infrastructure Security Agency Act of 2018, CISA's footprint grew to include roles protecting the census, managing National Special Security Events, and the U.S. response to the COVID-19 pandemic. It has also been involved in overseeing 5G network security, securing elections, and strengthening the US grid against electromagnetic pulses (EMPs). The Office for Bombing Prevention leads the national counter-IED effort.
Currently headquartered in Arlington, Virginia, in 2025 CISA is planning to move its headquarters along with 6,500 employees to a new 10 story, 620,000 sq ft building on the consolidated DHS St. Elizabeths campus headquarters.