Chief Information Officer - U.S. Department of Defense

Mission
Protect. Connect. Perform.

Vision
To Deliver an Information Dominant Domain to Defeat our Nation's Adversaries

Key Focus Areas
Cloud. Communications. Cybersecurity. Enabling Artificial Intelligence and Data.

Welcome

Welcome to the Website for the Department of Defense Chief Information Officer (DoD CIO). The DoD CIO is the principal staff assistant and senior advisor to the Secretary of Defense and Deputy Secretary of Defense for information technology (IT) (including national security systems and defense business systems), information resources management (IRM), and efficiencies. This means that DoD CIO is responsible for all matters relating to the DoD information enterprise, such as cybersecurity, communications, information systems, and more. To learn more, please read about the DoD IT Advancement Strategy called Fulcrum, our organization charter, or browse this website.

DoD Private 5G Deployment Strategy

The Latest

PTDO CIO Katie Arrington hosted the quarterly #DoDCIO Town Hall meeting last week to highlight great work across the organization. We welcomed new teammates, farewelled departing ones, & presented CIO Quarterly Awards to high performers. https://t.co/921R4CEKcd

PDCIO Leslie Beavers discussed DoD’s #SWFT initiative, updated efforts to rethink the #RMF, and other ongoing initiatives to ensure secure data is available at the edge during the C4ISRNet State of Cyber conference. #ZeroTrust #Cloud #DoDCIO : https://t.co/SI94VNhlIt.

In response to the SWFT RFIs #DoDCIO received more than 400 responses from industry leaders from across the spectrum of small, medium & large defense contractors. We are 30% into our 90-day sprint & those comments are helping us zero in on key changes to processes & tools. #DIB

We're blowing up the #RMF! We've heard DoD CIOs, CISOs, Service 6s & J6s, next is industry. Watch for an RFI in the near future. Five tenets serve as the foundation: Automation, Continuous Monitoring, Inheritance, CS & Resiliency, & Operationalizing RM. #Cyber #Software #DoDCIO

At @NATO's Digital Policy Committee, PTDO CIO Katie Arrington emphasized Alliance data-centric security, #ZeroTrust, & #cloud security. She also advocated for a fast-track, agile acquisition process for critical communications & IS capabilities. #DoDCIO https://t.co/GGjvsU0BYn

DoD Cyber Leaders: Collaborate on Zero Trust for Operational Technology at JHU/APL, July 16-17, 2025. Best practices, resources, and hands-on workshops for securing critical infrastructure. Please see flyer to register! #ZeroTrust #OTSecurity #DoD #Cybersecurity #DoDCIO https://t.co/P6dyalH9y1

Revitalized Cyber Excepted Service (CES) online training modules on JKO: • CES 101: CES Workforce Orientation • CES 102: CES Leadership Orientation • CES 103: CES HR Elements Register @ https://t.co/WDjsUDXz6G https://t.co/a1qTDo5oLs

PTDO CIO Katherine Arrington discussed senior leader communications in testimony before the HASC subcommittee on Cyber, Information Technology, and Information Systems (CITI) on 8 May. "One Team, One Fight!" https://t.co/psDLuqDi9o