Editor Notes: Timeline note: Although individual Operation Overload posts circulated prior to May 2025, this record uses the publication date of ISD's comprehensive report (05/06/2025) as the temporal anchor. The report can be accessed at the following URL: https://www.isdglobal.org/digital_dispatches/stolen-voices-russia-aligned-operation-manipulates-audio-and-images-to-impersonate-experts/. It consolidates evidence of coordinated AI-generated disinformation activity, including impersonation of institutions and individuals, across the first quarter of 2025. Please also refer to (1) Incident 909: Matryoshka Campaign Allegedly Uses Deepfakes to Impersonate Academics for Pro-Russian Propaganda; (2) Incident 929: Sustained AI-Driven Russian Disinformation Campaigns Doppelgänger, Storm-1516, and Matryoshka Reportedly Disrupting German Federal Elections; and (3) Incident 931: Reportedly Manipulated TikTok Videos Misrepresent Anti-AfD Protests as Far-Right Rallies. While 931 has not been explicitly attributed to Operation Overload (also known as Matryoshka or Storm-1679), its thematic content and manipulation tactics appear adjacent. (No direct forensic or institutional linkage has been established as of this writing.) (4) See also Incident 1061 for a specific archive of reporting on the USAID celebrity impersonation incident.