Katerina Sedova is a nonresident senior fellow at the Atlantic Council’s Eurasia Center. Previously, she served as a senior analytical coordinator at the US Department of State, where she coordinated efforts to counter Russia’s foreign information manipulation and interference abroad. She advised senior leadership and authored reports exposing Russia’s disinformation tactics that undermine US interests. Her service included a tour as an assistant information officer at the US embassy in Kyiv during wartime and at a critical period in Russia-Ukraine relations. There, she supported public diplomacy, bilateral engagement, and information resilience efforts.
Prior to joining the State Department, Sedova served as a research fellow on the CyberAI Project at Georgetown University’s Center for Security and Emerging Technology (CSET), where she became a leading expert on the national-security implications of foreign information manipulation enabled by artificial intelligence (AI). At CSET, she led research and advised policymakers on how adversaries leverage AI and emerging technologies to build disinformation campaigns and published influential reports on AI-generated information manipulation capabilities, large language model risks and mitigations for national security, and Chinese-Russian technological collaboration on AI development. Previously, Sedova also served as a TechCongress fellow at the US Senate Homeland Security and Governmental Affairs Committee, where she focused on cybersecurity legislation and emerging technology policy for national security applications. She also published research on countering state-sponsored malign influence for NATO’s Strategic Communications Center of Excellence. Her expertise on AI, emerging technology threats, and Russia-Ukraine security dynamics has been featured on major conference panels and quoted in leading media outlets, including the Washington Post, NPR, BBC World News, MSNBC, and CSPAN’s Washington Journal.
Sedova began her career at Microsoft, leading engineering teams in security and performance technologies for internet platforms, and was named as an inventor on multiple patents in cybersecurity technologies. She holds a BA in political science from California State University, Stanislaus and an MS in foreign service from Georgetown University. She speaks Ukrainian and Russian.
