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HPE: Russian hackers breached its security team’s email accounts

ID: 088f36b3-0bce-50c3-8375-923d5bf9dce6

STIX ID: report--088f36b3-0bce-50c3-8375-923d5bf9dce6

Feed Name: DataBreaches.Net

Threat Score
78/100

Date Published: 2024-01-25

Date Updated: 2026-04-19

Author: Dissent

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Hewlett Packard Enterprise (HPE) disclosed that suspected Russian APT Midnight Blizzard (Cozy Bear/APT29) compromised its Microsoft Office 365 email environment in May 2023, exfiltrating data from its cybersecurity team and other departments; HPE was notified on December 12th, according to its SEC Form 8-K filing, and the group is known for prior operations such as the 2020 SolarWinds attack.

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