Russian government-linked hackers, identified as Midnight Blizzard, have stolen emails between several U.S. federal agencies and Microsoft Corporation (NASDAQ:MSFT), according to the Cybersecurity and Infrastructure Security Agency (CISA). This breach, part of a prolonged hack disclosed in an emergency directive by CISA, marks the first official acknowledgment of compromised federal agency emails with Microsoft. The directive requires federal agencies to reset credentials for compromised accounts. Microsoft is working with affected customers and CISA to mitigate the breach, which is part of a series of security incidents involving Russian hackers targeting Microsoft and other organizations.