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Microsoft says state-sponsored hackers spied on its executives – Security | #hacking | #cybersecurity | #infosec | #comptia | #pentest | #hacker


A Russian state-sponsored group hacked into Microsoft’s corporate systems on January 12 and stole some emails and documents from staff accounts.

The Russian group was able to access “a very small percentage” of Microsoft corporate email accounts, including members of its senior leadership team and employees in its cybersecurity, legal, and other functions, the company said.

Microsoft’s threat research team routinely investigates nation-state hackers such as Russia’s “Midnight Blizzard,” who they say is responsible.

Midnight Blizzard is also known as APT29, Nobelium or Cozy Bear by cyber security researchers and linked to Russia’s SVR spy agency, according to US officials.

The group is best known for its intrusions of the Democratic National Committee surrounding the 2016 US election.

Microsoft said its probe into the breach indicated the hackers were initially targeting Microsoft to learn what the technology giant knew about their operations.

The company said the hackers used a password spray attack starting in November 2023 to breach a Microsoft platform.

Hackers use this technique to infiltrate a company’s systems by using the same compromised password against multiple related accounts.

The Russian Embassy in Washington and Ministry of Foreign Affairs did not immediately respond to a request for comment.

Microsoft said it investigated the incident and disrupted the malicious activity, blocking the group’s access to its systems.

“This attack does highlight the continued risk posed to all organizations from well-resourced nation-state threat actors like Midnight Blizzard,” the company said, noting that the attack was not the result of a specific vulnerability in its products or services.

“To date, there is no evidence that the threat actor had any access to customer environments, production systems, source code, or AI systems,” a company blog reads.

Microsoft’s disclosure follows a new regulatory requirement implemented by the US Securities and Exchange Commission (SEC) in December that mandates publicly owned companies to promptly disclose cyber incidents.

Affected companies must file a report about a hack’s impact within four business days of discovery – disclosing the time, scope and nature of the breach to the government.

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