CISA did not name the affected federal agencies that had emails stolen, and a spokesperson ... on the software giant for hosting government emails accounts. Microsoft went public in January ...

Russian state-backed hackers have stolen email correspondence between US government agencies and Microsoft via a breach of the software giant’s systems, US officials confirmed on Thursday.

The Cybersecurity and Infrastructure Security Agency has revealed that Russian government-linked hackers have stolen emails between several U.S. federal agencies and Microsoft Corporation MSFT.

Microsoft said it cannot be completely certain this was how the key was stolen because ... enterprise and corporate email accounts of several organizations and government departments, Microsoft ...

The suspected China-backed hackers who breached U.S. Commerce and State Department officials' email accounts could ... the attackers used a stolen or forged Microsoft signing key of the kind ...

The emails stolen belong to US staff working ... July 2023 and went unnoticed for a while. However, the US government was able to tip Microsoft to the attack, hence prompting an urgent response.