Russian hackers' attempt to target war crimes prosecutors, the SSSCIP says, has ramped up but there's no effort, thus far, that Russia has managed to exfiltrate much data. They've seen no leaks thus far. 

"They are hunting what we know about specific people, specific groups, specific actions," an SSSCIP official says. They want to identify informants and spies. The Russians want to know if they need to "hide somebody from prosecution" or if they have to "eliminate the witness."