Russian Hackers Breach Microsoft Emails, Gaining Access to U.S. Agencies

Russian government hackers stole Microsoft corporate emails and obtained passwords and materials that could allow them to breach multiple U.S. agencies
A federal directive required affected agencies to change compromised logins, investigate risks, and secure authentication tools
The breach exposes the federal government's heavy reliance on Microsoft software for cybersecurity
It's unclear if the hackers obtained anything sensitive yet, but they pose a serious ongoing threat
The breach triggers questions about Microsoft's security culture and its ability to protect government users