National Security Archive: "Operation to counter ISIS internet and media operations considered “most complex offensive cyberspace operation USCYBERCOM has conducted to date” Operation “imposed time and resource costs” on Islamic State propaganda New FOIA documents show challenges in operational synchronization, deconfliction, and inter-agency coordination Washington D.C., January 21, 2020 – Today the National Security Archive is releasing 6 USCYBERCOM documents obtained through FOIA which shed new light on the campaign to counter ISIS in cyberspace. These documents, ranging from a discussion of assessment frameworks to the 120-day assessment of Operation GLOWING SYMPHONY, reveal the unprecedented complexity of the operation, resulting challehttps://nsarchive.gwu.edu/briefing-book/cyber-vault/2020-01-21/uscybercom-af... in coordination and deconfliction, and assessments of effectiveness." In full: https://nsarchive.gwu.edu/briefing-book/cyber-vault/2020-01-21/uscybercom-af...