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Response snapshot Oct 26, 2026, 22:09 UTC

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Disclosed incidenthibp-underarmour

Under Armour breach: 72,742,892 accounts exposed

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.

At a glance

Sources
1 source

What to do

If you or your organization used this service, change reused passwords, watch for phishing that uses the exposed data, and check the disclosure for the organization's guidance.

Read Have I Been Pwned: Under Armour (opens a new tab)

What happened

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.

Related technology

Sources

  1. Primary source

    Have I Been Pwned: Under Armour (opens a new tab)

    Verified breach loaded into Have I Been Pwned: account count, exposed data types, and dates.

    Published Checked

  2. Primary source

    Have I Been Pwned breach API (opens a new tab)

    The breach list that supplied this entry.

    Published Date not suppliedChecked

Cite this record

For factual claims, cite the primary sources above; cite KEVWire for its compilation, dates, and classifications.

APA

KEVWire. (2026, January 21). Under Armour breach: 72,742,892 accounts exposed. https://kevwire.com/record/hibp-underarmour

MLA

"Under Armour breach: 72,742,892 accounts exposed." KEVWire, 21 Jan. 2026, kevwire.com/record/hibp-underarmour.

Chicago

KEVWire. "Under Armour breach: 72,742,892 accounts exposed." Last modified January 21, 2026. https://kevwire.com/record/hibp-underarmour.

Evidence summary (plain text)

Under Armour breach: 72,742,892 accounts exposed (Jan 21, 2026).
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.
Sources:
Have I Been Pwned: Under Armour: https://haveibeenpwned.com/Breach/UnderArmour
Have I Been Pwned breach API: https://haveibeenpwned.com/api/v3/breaches
Record ID: hibp-underarmour.
Record origin: Ingested record.
AI evidence: Not assessed.
About this data

This record was ingested from a data source. Retrieved: Oct 26, 2026, 21:25 UTC. Ingestion is not an independent editorial investigation.

Verified by Have I Been Pwned. Breach date: 2025-11-17; loaded 2026-01-21. Exposed data: Dates of birth, Email addresses, Genders, Geographic locations, Names, Purchases. Counts are accounts in the loaded data, not necessarily distinct people.

Technology tags indicate possible relevance, not verified exposure. Confirm the affected product, version, and configuration against your own inventory; KEVWire does not scan your systems.

A personal reading checklist on this device, not verified remediation.

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Record details

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