• Resident Fellow

Esteban Ponce de León


Esteban Ponce de León is a resident fellow at the Digital Forensic Research Lab (DFRLab) of the Atlantic Council. Esteban specializes in open-source research, online disinformation, and influence operations, with a focus on developing open-source intelligence tools and research methods grounded in data science. His work focuses in developing methods to integrate artificial intelligence models into digital research workflows to enhance open research, as well as developing methodology frameworks to assess artificial intelligence language models capabilities and risks for the information environment.

June 2025

Grok struggles with fact-checking amid Israel-Iran war

by Esteban Ponce de León, Ali Chenrose

An analysis of over 100,000 posts on X reveals Grok's inaccurate and conflicting verifications in responses regarding the Israel-Iran war
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November 2024

How mainstream Georgian media shaped perceptions of the foreign agent law protests

by Sopo Gelava, Givi Gigitashvili, Esteban Ponce de León

Georgian media promoted opposing views, with TV channels critical of the law outperforming pro-government channels
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October 2024

Doppelganger websites persist one month following US government seizures

by Esteban Ponce de León

The Kremlin's fake website operation continues to maintain its online presence, publishing new content at rates similar to pre-seizure levels
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