Every public data breach

Disclosed this week47On record26,367

47 disclosed this week · 26,367 on record

Under Armour

Disclosed Mar 29, 2018Confirmed

Official notice

What is known

People affectedNot stated in the sources we have
DisclosedMar 29, 2018
HappenedMar 25, 2018
AttackNot stated
Data exposedNamesEmailsPasswordsAddresses
SectorTech · US
StatusConfirmed

Sources

Official noticeoag.ca.gov
California Attorney General breach notice: Under Armour
Official noticemaine.gov
Maine Attorney General breach notice archive: Under Armour

Notices filed

Residents of CAMar 29, 2018
California AGCount not stated
Residents of MEMar 29, 2018
Maine AGCount not stated

Other breaches at Under Armour

Under Armour customer records posted online, HIBP counts 72 million emailsRansomware exposed dates of birth, emails, location data, names and financial details.Ransomware73M accountsRetailUSUnverifiedJan 21
History of this record
sector2026-09-25
other to techby backfillSource
data_types2026-09-25
[] to ["names","emails","passwords","addresses"]by backfillSource
occurred2026-09-25
empty to 2018-03-25by backfillSource
Added2026-09-25
First recordedby backfillSource

First seen 2026-09-25 (California AG), confirmed by California AG. Record counts are as reported. Not legal advice.

Everything about Under Armour