In November 2025, the Everest ransomware group claimed Under Armour as a victim and attempted to extort a ransom , alleging they had obtained access to 343GB of data. In January 2026, customer data from the incident was published publicly on a popular hacking forum , including 72M email addresses. Many records also contained additional personal information such as names, dates of birth, genders, geographic locations and purchase information.
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The full story
This article is one source in a clustered incident — the cluster page carries the summary, timeline and every other outlet covering it.
