President Joe Biden will press Russian President Vladimir Putin on the Kremlin’s involvement in the SolarWinds cyberattacks amid the recent spate of independent Russia-based ransomware hacks, according to his top national security aide.

“The issue of state-sponsored cyberattacks of that scope and scale remains a matter of grave concern to the United States. It will be a topic of conversation between the presidents. Us talking ransomware is not going to come to the exclusion of us talking about cyberthreats in multiple other domains,” Biden national security adviser Jake Sullivan told reporters.