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Homeland Security

Our Homeland Security Mission

We protect California by leveraging partnerships, bolstering capabilities, illuminating threats, sharing intelligence and advancing the Homeland Security Strategy.

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See Something, Say Something

Report suspicous activites

State Threat Assessment Center

Providing information and threat analysis

California Cybersecurity Integration Center

Preventing cyber incidents in California

Homeland Security Policy

Building programs and strengthening partnerships

Homeland Security Grants

Funding security improvements across California

Homeland Security Division Leadership

Tom Osborne

Tom Osborne

Deputy Director, Homeland Security

Deputy Director Osborne was appointed by Governor Newsom and joined the California Governor’s Office of Emergency Services (Cal OES) in November 2019. Deputy Director Osborne provides direction and oversight to the newly formed Cal OES Homeland Security Division. In this role, Deputy Director Osborne is responsible for the State Threat Assessment System (STAS), the California Cyber Security Integration Center (Cal-CSIC), and the following homeland security programs: the Governor’s Homeland Security Advisory Committee; the Governor’s Creating Safer Communities Task Force; the Governor’s Cybersecurity Task Force; Port and Maritime Security; Chemical Biological, Radiological, Nuclear and Explosive material (CBRNE) Protection and Preparedness; Event Planning Security; Critical Infrastructure Protection; Statewide School Safety; and the BioWatch System. Moreover, Deputy Director Osborne provides administrative oversight to the application of California’s homeland security grants, known as the Homeland Security Grant Program (HSGP) and Urban Area Security Initiative (UASI) — funding that totaled $197,911,000 in FY2019 and received from the U.S. Department of Homeland Security (DHS).

Prior to joining Cal OES, Deputy Director Osborne spent nearly 24 years with the Federal Bureau of Investigation (FBI) as a Special Agent, specializing in national security threat issues. Assigned to the Sacramento Field Office, his final assignment at the FBI was an executive management role as the Assistant Special Agent in Charge (ASAC) overseeing the National Security and Administrative Branches, where his responsibilities included International and Domestic Terrorism, Counterintelligence, Cyber, Critical Incident Response, Surveillance, Training, FBI National Academy, security, facilities, and oversight of all professional staff employees. Deputy Director Osborne also spent over a year in Washington, D.C. as Unit Chief of the FBI’s Counterterrorism Internet Targeting Unit.

Michael McCarthy

Michael McCarthy

Commander, State Threat Assessment Center


Michael McCarthy is a Captain with the California Highway Patrol (CHP) and is currently assigned to the California Governor’s Office of Emergency Services where he serves as the Commander of the State Threat Assessment Center (STAC). In his current assignment, Captain McCarthy is responsible for performance of the STAC, guiding its continual development and expanding architecture in support of its primary mission to act as California’s statewide information clearinghouse to aid in prevention, preparation, and response to strategic threats while preserving individual privacy, civil rights, and civil liberties.

His duties include maintaining effective relations with the executive management of the four Regional Threat Assessment Centers and one Major Urban Area Intelligence Center that make up the California State Threat Assessment System, while focusing on sharing information collected during the ordinary course of business in connection with possibly illicit, illegal, and suspicious activity. Additionally, he conducts liaison activities with leadership from Federal, State, and Local law enforcement agencies throughout California, as well as, coordinates various operational issues with other state and local fusion centers through close interaction and collaboration with representatives of all levels of government.

Captain McCarthy is a 26-year veteran of the CHP and in his previous assignments he has worked field operations throughout California, including the East Los Angeles, Contra Costa, North Sacramento and Yuba Sutter Area offices. During his career he has worked as a patrol officer, special operations team member, Drug Recognition Expert (Instructor), Academy instructor, patrol supervisor, field operations lieutenant and executive officer.

In addition to his duties with the CHP, Captain McCarthy is also a 29-year veteran of the United States Army (Reserve). He is a career Army Intelligence officer and retired as a Lieutenant Colonel assigned to the Defense Intelligence Agency as a Strategic Intelligence Officer.

His Army assignments included counter drug operations with the United States Southern Command in Panama, tactical intelligence and counter intelligence operations in Iraq and Kuwait and various command positions.

Captain McCarthy is a graduate of Norwich University, the United States Army Command and General Staff College, and the United States Naval Post Graduate School in Monterey, California, where he earned a master’s degree in Homeland Security Studies in 2020.

David Lane

David Lane

Commander, California Cyber Security Integration Center

David Lane is a government leader with 22 years of experience focused on building, supporting, and maturing the State of California’s IT & Cybersecurity capabilities.  Mr. Lane holds several certifications relevant to cybersecurity operations including CISSP and ITIL.  In 2018, David and his team of staff received the California Department of Technology’s “Directorates Annual Innovation Award” for their role in standing up the Department’s Security Operations Center responsible for protecting State managed systems, networks, cloud environments, and data centers.  Additionally, David had the honor of attending and successfully completing the State of California IT Leadership Academy.

Current duties of the (Acting) Cal-CSIC Commander include:

  • Work with multi-jurisdictional stakeholders
  • Manage interdisciplinary teams charged with safeguarding information technology assets and cyber networks
  • Maintain in-depth knowledge of state-of-the-art cyber defense strategies and mitigation efforts, including hardware and software, and network protection configurations
  • Maintain knowledge of homeland security strategies, particularly with respect to California, and their interrelationship with cyber security policy
  • Develop and execute Budget Change Proposals