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Everest Ransomware Says It Stole Data of Millions of Under Armour Users

Feeds.Feedburner •Waqas • November 17, 2025

Everest ransomware claims to have breached Under Armour, stealing 343GB of data, including customer info, product records, and internal company files.

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This article is one source in a clustered incident — the cluster page carries the summary, timeline and every other outlet covering it.

Everest Ransomware Group Breaches Under Armour, Exposing 343 GB of Data The Everest ransomware group has claimed responsibility for a significant data breach at Under Armour, allegedly stealing 343 GB of sensitive information. This data includes customer details, purchase history, and internal company files, which have been displayed on the group's dark web leak site. The breach reportedly affects millions of users and stems from Under Armour's marketing or product systems. 11 sources 60

Extracted Entities

Everest Ransomware Says It Stole Data of Millions of Under Armour Users

The full story

Extracted Entities

Attack Types (1)

Companies (1)

Ransomware Groups (1)