Under Armour data breach: 72.7M accounts exposed
Severity: high · Patch status: no-fix-needed · Since 2026-01-21
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. Exposed data: dates of birth, email addresses, genders, geographic locations, names, purchases. The breach dates from Nov 17, 2025; Have I Been Pwned loaded it on Jan 21, 2026.
What to do
- If you had a Under Armour account, change its password and the password of any other account that reused it.
- Turn on multi-factor authentication wherever it is offered.
- Check whether your addresses are in this breach at https://haveibeenpwned.com.
Sources
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