Microsoft Actions Following Attack by Nation State Actor Midnight Blizzard

The Microsoft security team detected a nation-state attack on our corporate systems on January 12, 2024, and immediately activated our response process to investigate, disrupt malicious activity, mitigate the attack, and deny the threat actor further access. Microsoft has identified the threat actor as Midnight Blizzard, the Russian state-sponsored actor also known as Nobelium.

access actions actor attack blizzard corporate disrupt january malicious microsoft microsoft security midnight midnight blizzard nation nation state nation-state attack process response russian security security team sponsored state systems team threat threat actor