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Listed on a ransomware leak site

UNDER ARMOUR

underarmour.com

UNDER ARMOUR was listed on the Everest leak site on Nov 17, 2025. Information as of Oct 19, 2026.

Country: United StatesIndustry: Unknown
Updated continuously · figures as of Oct 19, 2026
Claimed by
Everest
First listed
Nov 17, 2025
Claims recorded
1

Leak-Site Claim.

EverestConfirmed claim
Posted on the leak site
Nov 17, 2025
Collected by Brandefense
Nov 17, 2025
Data claimed
343 GB
Leak-site post text, written by the group
Under Armour, Inc. is an American multinational corporation founded in 1996 by Kevin Plank. The company specializes in manufacturing and selling branded performance apparel, footwear, and accessories. Its products are engineered with innovative technologies to mitigate the impact of environmental conditions on physical activities. Headquartered in Baltimore, Maryland, it caters extensively to the sports industry globally.

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Brenner Base Tunnel
bbt-se.com
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Taekwang Network
tkni.co.kr
EverestKRSouth KoreaTechnologyNot stated
Chugoku Bend
bend.co.jp
EverestJPJapanManufacturingNot stated
Kissei Shoji
kissei-shoji.co.jp
EverestJPJapanFood and BeverageNot stated
Topcon Healthcare
topconhealthcare.com
EverestUSUnited StatesHealthcareNot stated
KVH
kvh.com
EverestUSUnited StatesTelecommunicationsNot stated

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Figures as of Oct 19, 2026. Confirmed leak-site claims collected by Brandefense technologies and validated by Brandefense analysts.

Listed on a leak site means a ransomware group has claimed the company; it is not a confirmed breach. To request a correction or removal, contact Brandefense.