The DHS Chief Security Officer (CSO) reports directly to the Deputy Secretary on all matters pertaining to security within the Department of Homeland Security. Pursuant to Executive Order 12958, as amended, the CSO is designated the Senior Agency Official. In that capacity, the CSO:
- Directs and administers the Department's program under which information is classified, safeguarded, and declassified.
- Coordinates the Department’s classification management program and serve as the DHS point of contact with the Information Security Oversight Office.
- Provides support and coordinates with the Department's emergency planning and response efforts and activities.
- Provides guidance and oversight on meeting physical security requirements.