1) Russia poses a serious threat landscape, targeting governments, financial organizations, telecommunications, utilities, and transport sectors, as well as citizens.
2) An investigation of a cryptocurrency bank found 1000 workstations and 200 servers infected over 2 weeks, with backups also hacked using unique encryption keys on each device and PowerShell scripts.
3) Threat tactics seen include wipers, cryptors like Black Energy and HDDCryptor, as well as Shamoon 2 and WannaCry exploiting the EternalBlue vulnerability and using techniques like full disk encryption, malware-less attacks, and "tailored" encryption.