From Nasdaq:

Microsoft disclosed that its corporate systems were breached by Russian state-sponsored threat actors in November 2023, with the intrusion undiscovered until January 2024. The attackers, known as Midnight Blizzard, used a basic password spray attack to compromise poorly protected corporate email accounts, seeking information on Microsoft’s knowledge of them.

Despite the breach, Microsoft assured that the attackers did not gain access to sensitive systems such as AI and source codes after cutting off their access upon discovery. The company has worked with law enforcement and regulators to address the breach, underscoring the importance of adhering to security best practices.

The breach also revealed a lack of attention to security postures and emphasized the importance of continuously monitoring cloud logs. This incident highlights the need to protect sensitive information in less critical systems and implement continuous monitoring of cloud logs to identify unusual activities before attackers gain access.

The successful cyberattack against Microsoft underscores the significance of ongoing cloud log monitoring for security, highlighting the importance of implementing continuous monitoring to identify unusual activities before attackers gain access.



Read more: Microsoft Discloses Breach By Russian Cybercriminals