# Office of the Chief Security Officer

**Agency:** Homeland Security  
**Account:** Operations and Support  
**Source document:** Office of the Secretary and Executive Management · p. 5  
**Vintage:** President's Budget PB2027  
**Canonical URL:** https://hitchintel.com/budget/homeland-security/office-of-the-chief-security-officer-2  

> **Trust:** parsed from the agency Congressional Justification. Approximate, **not summable**, verify at the cited page.

## Funding ($M)

| Fiscal year | Basis | Amount |
| --- | --- | --- |
| FY2027 | request | 210.4 |

## Homeland Security discretionary budget authority (OMB PBDB — authoritative)

FY2027 $91.40B, FY2026 $88.60B. This is the agency total, not a sum of the parsed lines.


## What this funds

OCSO serves as the Department's central authority for the governance and operations of the DHS security program, ensuring the protection of employees, information, and property through consistent application of security measures across DHS Headquarters, Offices, Directorates, and Components. As the designated Senior Agency Official (SAO) and Cognizant Security Authority (CSA), OCSO leads the integration of security initiatives by providing strategic leadership, actionable solutions, operational support, and policy guidance to safeguard DHS personnel, assets, facilities, and information. By developing and implementing Department-wide policies, standards, and business practices, OCSO strengthens the efficiency and effectiveness of security efforts, ensuring a cohesive, resilient, and responsive security posture against evolving threats.


**Where it sits:** Civilian / Non-Defense › Homeland Security › Office of the Secretary and Executive Management › Operations and Support › Office of the Chief Security Officer


*HitchAI is an independent intelligence service, not affiliated with the U.S. government. Civilian line dollars are parsed from agency Congressional Justifications and are approximate.*