EU sanctions Russian GRU hackers for cyberattacks against Estonia

The EU has sanctioned three GRU Unit 29155 officers for 2020 cyber intrusions into multiple Estonian ministries that resulted in the theft of thousands of classified and sensitive documents; the report ties Unit 29155 (aka Cadet Blizzard/Ember Bear) to widespread sabotage and cyber operations against EU, NATO, and Ukrainian targets using backdoors, information stealers, fake ransomware, and phishing campaigns.