CLEAN : 'Russian government is responsible' for latest cyberattacks on Ukraine: US official

The transcript discusses widescale cyber attacks on Ukrainian banks, highlighting technical information that links these attacks to the Russian main Intelligence Directorate, known as GRU. It mentions the GRU's infrastructure transmitting high volumes of communication to Ukraine-based IP addresses and domains, suggesting a coordinated effort in cyber activities.

What is the full name of the Russian intelligence agency referred to as 'Gru'?

What type of communication was observed being transmitted to Ukraine?