Loading
Loading
We use strictly necessary cookies to run this site, and analytics cookies to understand how it's used. See our Privacy Policy for details.
Breach occurred 2025-11-17Verifiedunderarmour.com
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.
Data exposed
Frequently asked questions
The Under Armour data breach occurred on November 17, 2025. It was added to Have I Been Pwned's breach catalog on January 21, 2026.
72,742,892 accounts were affected by the Under Armour data breach, according to Have I Been Pwned's records.
The Under Armour breach exposed the following data types: Dates of birth, Email addresses, Genders, Geographic locations, Names, Purchases.
Yes. Have I Been Pwned has verified the Under Armour breach, meaning there's confirmed evidence the exposed data is genuine and tied to real accounts.
Use KazaSec's free Email Breach Checker (/tools/breach-check) to check whether a specific email address has surfaced in the Under Armour breach, or any other known breach — the tool never stores what you search.
Our free Email Breach Checker tells you whether a specific email address has surfaced in this breach — or any other known breach — without ever storing what you search.
Check your email →Talk to us about this
We help organizations find and fix the gaps that lead to a breach, before they do.