The Russian invasion of Ukraine may involve a heavy measure of cyberwar, a new and shrouded form of espionage and sabotage with potentially devastating impacts. Here we offer a special edition of the @HPCpodcast to discuss the role of “geopolitical cyberwar” — nation-state cyber strategies driven by combinations of HPC and AI, and the relative sophistication of the Russians vs. the U.S. and western Europe. Our guest: Richard Stiennon (his Google Books profile), he is a cyber security industry analyst and author who was formerly of Gartner’s IT Security Research Practice and a Forbes columnist. Stiennon told us he is surprised