What was exposed, when it happened, and which databases confirm it.
- accounts
- 72,742,892
- Breached
- November 17, 2025
- Last Update
- January 21, 2026
Were you caught in this breach?
Search your email, phone number or username against every record CheckLeaked indexes.
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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.
Compromised Info
- Dates of birth
- Email addresses
- Genders
- Geographic locations
- Names
- Purchases
Attestation
Four independent databases catalog this breach and they do not always agree. Each lane below is one source’s own count.
Sources & Link Methods
- LeakCheck— linked via automatic string matching
- Dehashed— linked via domain matching
- HIBP
FAQ
What was leaked in the UnderArmour breach?
The UnderArmour breach exposed: Dates of birth, Email addresses, Genders, Geographic locations, Names, and Purchases.
When did the UnderArmour breach happen?
The UnderArmour breach was disclosed on November 17, 2025 and affected 72,742,892 records.
Am I affected by the UnderArmour breach?
Search your email, phone or username at checkleaked.cc to find out whether your data appears in the UnderArmour leak.