Breaches and incidentsBriefReported by a reputable outlet, citing the company

Under Armour: 72.7 million customer records from Everest’s November 2025 claim published and indexed by HIBP

HIBP (added 21 Jan 2026): about 72.7M email addresses with names, dates of birth, genders, locations and purchase details, leaked on a hacking forum in...

Disclosed

What happened

  • HIBP (added 21 Jan 2026): about 72.7M email addresses with names, dates of birth, genders, locations and purchase details, leaked on a hacking forum in January after Everest’s November 2025 ransom claim of 343GB. Under Armour had not publicly confirmed the breach in coverage reviewed; it said it was investigating.
  • Root cause: not disclosed.
  • Everest ransomware group claimed it.
  • A Texas class action has been filed.

Sources

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