Ukraine's military intelligence agency breached the servers of the Russian occupying government in Crimea.
The GUR says it compromised Russian leadership accounts on various platforms and collected more than 100TB of data before wiping servers on Friday.

Cyber blast in Crimea. Ukrainian intelligence crashes Russian occupation servers
Cyber specialists from Ukraine's Defense Intelligence (HUR) have carried out a large-scale speci... - Новости - Crimea - Russia - cyber security - Ukraine - intelligence
RBC-Ukraine (newsukraine.rbc.ua)