Office of Cybersecurity, Energy Security, and Emergency Response | Department of Energy

Office of Cybersecurity, Energy Security, and Emergency Response | Department of Energy
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Office of Cybersecurity, Energy Security, and Emergency Response
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The Office of Cybersecurity, Energy Security, and Emergency Response (CESER) leads the Department's efforts to strengthen the security and resilience of the U.S. energy infrastructure against all threats and hazards. CESER leads the Department of Energy's statutory role as the Sector Risk Management Agency for the energy sector.
About Us
Energy is essential. It keeps us connected, powers and fuels our homes and businesses, keeps our hospitals running, enables national defense, and helps us move the goods and services that keep our economy strong. CESER proactively address threats to American energy security, in all forms, through policy, innovation, research, collaboration, and industry engagement.
Our Mission
Areas of Focus
Cyber Threats
Cyber threats targeting energy systems continue to increase and evolve; foreign adversaries, nation states, and criminal actors pose a serious threat to U.S. critical energy infrastructure. CESER mitigates cyber risks to the energy sector through threat-informed research and development, the deployment of innovative tools and technologies, policy, and strategic partnerships that facilitate information sharing to bolster the cybersecurity and resilience of critical energy infrastructure.
National Cybersecurity Strategy
Cyber RD&D
C2M2
Cyber-Informed Engineering
CyTRICS
ETAC
Physical Threats
Physical threats to energy infrastructure are unique because they take a wide variety of forms. They can be accidental or purposeful incidents, and have a variety of motives. CESER works closely with partners in the intelligence and law enforcement communities, and with industry, to mitigate risks posed by physical attacks on energy infrastructure.
Electromagnetic Pulse Activities
Natural Hazards
Natural hazards and extreme weather are impacting communities and destroying critical infrastructure more frequently and with greater intensity. CESER works to mitigate the risks posed to the energy sector by events such as wildfires and hurricanes, as well as from space weather such as solar flares and other geomagnetic disturbances.
Geomagnetic Disturbance Activities
Extreme Weather Response
Emergency Response
When an energy emergency occurs due to a cyber, physical, or natural hazard-related incident, CESER is on point for deploying appropriate staff and resources to restore power or the flow of fuel quickly and safely.
Emergency Hub
Response & Recovery
ESF #12
ETAC
Emergency Authorities
IIJA Implementation
CESER is responsible for the implementation of several provisions within the Infrastructure Investment and Jobs Act (IIJA) related to energy security.
CESER's IIJA Provisions
The Department of Energy’s (DOE) authority under Section 202(c) of the Federal Power Act permits the Secretary of Energy to issue emergency orders for electricity generation and transmission during critical situations like war or energy shortages. The DOE exercises this power to ensure grid reliability.
DOE’s Use of Federal Power Act Emergency Authority
From Our Blogs
Unleash American Energy Innovation
Energy Security
Energy Security
CESER and Lawrence Livermore National Laboratory Launch AI Testbed to Strengthen the Energy Sector’s AI Cybersecurity
April 14, 2026
Priorities
Energy Security
Energy Security
Energy Security
Energy Security
Energy Security
CESER Prioritizes American Energy Dominance and Infrastructure Hardening in New Strategic Plan
March 18, 2026
Strengthen Grid Reliability and Security
Striking Out the Threat: How the Energy Sector Combats Cyber Attacks
February 18, 2026
Strengthen Grid Reliability and Security
CESER Releases New GMD Modeling Software Tool
February 9, 2026
View More
Latest News
Emergency Response
Trump Administration Keeps Colorado Coal Plant Open to Ensure Affordable, Reliable and Secure Power in Colorado
March 30, 2026
Emergency Response
Trump Administration Keeps Indiana Coal Plants Open to Ensure Affordable, Reliable and Secure Power in the Midwest
March 23, 2026
Coal
Emergency Response
Emergency Response
Trump Administration Keeps Coal Plant Open to Ensure Affordable, Reliable and Secure Power in the Northwest
March 16, 2026
Strengthen Grid Reliability and Security
Energy Secretary Keeps Critical Generation Online in Mid-Atlantic
February 23, 2026
View More
Leadership
Alex Fitzsimmons
Director, Office of Cybersecurity, Energy Security, and Emergency Response
Tim Kocher
Deputy Director, Office of Cybersecurity, Energy Security, and Emergency Response
Lili Colon
Principal Deputy Director, Office of Cybersecurity, Energy Security, and Emergency Response
Leslie Pezzullo
Chief Operating Officer
Steven M. McAndrews
Deputy Director of Threat Analysis and Incident Response
Daniel LaGraffe
Deputy Director of Infrastructure Hardening and Technology Development
View All
Divisions
Preparedness, Policy, and Risk Analysis
June 17, 2025
Response & Recovery
November 23, 2024
Risk Management Tools and Technologies (RMT) Fact Sheets
October 16, 2025
Contact Us
Office of Cybersecurity, Energy Security, and Emergency Response
Office of Cybersecurity, Energy Security, and Emergency Response
1000 Independence Avenue, SW
Washington, DC 20585
E-mail Us
energysrma@hq.doe.gov
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