On January 19th, Microsoft announced that it had detected that the email accounts of some executives had been attacked by the Russian hacker group Midnight Blizzard (also known as Nobel). Microsoft successfully lifted the hacker organization's access to these email accounts on January 13th. Microsoft stated that hackers conducted attacks to obtain information related to the hacker organization, and there is currently no evidence to suggest that hackers have access to customer information, source code, or artificial intelligence systems. The investigation is still ongoing. At present, the hacker organization has not responded to this.