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Christopher "Chris" CallahanChief of Cybersecurity Region 10Cybersecurity and Infrastructure Security Agency (CISA)

Christopher Callahan serves as the Chief of Cybersecurity of the DHS Cybersecurity and Infrastructure Security Agency (CISA) Region 10 office in Seattle where he is responsible for assisting private and public sector stakeholders enhance the security and resiliency of critical infrastructure facilities in the states of Alaska, Idaho, Oregon, and Washington

Prior to joining CISA in January 2022, Mr. Callahan served for twenty-five years across multiple Department of Defense Agencies to include the US Army Corps of Engineers, Army Network Command, Information Security Engineering Command and US Army Europe G6 office all in Cybersecurity leadership roles. In his previous role for the US Corps of Engineers he served as the Cybersecurity Engineering and Analysis Branch Chief, which maintained the overall Cybersecurity program for the High Performance Computing Modernization Program (HPCMP) for the Defense Research and Engineering Network (DREN). He ran the operations of multiple security assessment teams and the Cybersecurity Service Provider for the DREN and SDREN. He established the first Operational Technology (OT) NSA Certified Red Team within DoD in 2021. Mr. Callahan has assessed cybersecurity in various operational assignments throughout the world over his career.

Trained as an Information Systems Technician (IT) with training as an Advanced Network Analyst in the United States Navy, Mr. Callahan served on a ship five years out of Naval Station Bremerton with three western pacific deployments and four years at Naval Computer and Telecommunications Station Puget Sound. Mr. Callahan holds several professional certifications to include: CISSP, CGRC and GICSP and has earned a B.S. in Information Technology, and an M.S. Security Management.

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