The US energy Dept. and other global agencies have been hit in ‘global hacking spree’ due to the security flaw in MOVEit Transfer.
It goes to show that even large government organisations are enterprise organisations too and need to employ third party services for certain tasks. It’s likely they will have third party/supplier reviews but ‘zero day’ code vulnerabilities are unknown unknowns that are by definition not able to be directly remediated.
CLOP did state that government data will be deleted and not retained or shared. This is almost certainly in an effort to not ‘poke the bear’ and fall below a line that invites action from competent authorities, although it’s unlikely that their word alone will cut the mustard.