Every public data breach

Disclosed this week44On record26,355

44 disclosed this week · 26,355 on record

TransUnion

3 breaches4.5M affected in allFinancetransunion.com

TransUnion third-party app breach exposes 4.4 million consumersVendor breach exposed names, dates of birth, Social Security numbers, addresses, phone numbers and emails. Reported to the California AG.Vendor breach4.5M affectedFinanceUSAug 26, 2025Breach, details not statedBreach notice filed with the California AG, details not stated.12K affectedFinanceUSAug 4, 2022Breach, details not statedExposed names, Social Security numbers, government IDs, payment cards and names. Reported to the Maine AG.FinanceUSOct 23, 2018
About

Every breach here links to its sources and official notices. Across Glyph: lawsuits, incidents and outages.

Added2026-09-25
TransUnion, 2018-10-23
source2026-09-25
TransUnion, 2022-08-04https://www.in.gov/attorneygeneral/consumer-protection-division/id-theft-prevention/files/2022-DB-Year-to-Date-Report-for-Website.pdf
records2026-09-25
TransUnion, 2022-08-0411765
records_basis2026-09-25
TransUnion, 2022-08-04organization
records2026-09-25
TransUnion, 2022-08-0467
records2026-09-25
TransUnion, 2025-08-264461511
source2026-09-25
TransUnion, 2022-08-04https://ago.vermont.gov/document/2022-11-7-transunion-data-breach-notice-consumers
sector2026-09-25
TransUnion, 2022-08-04finance
source2026-09-25
TransUnion, 2025-08-26https://ago.vermont.gov/document/2025-09-01-transunion-data-breach-notice-consumers
campaign2026-09-25
TransUnion, 2025-08-26salesforce-2025
sector2026-09-25
TransUnion, 2025-08-26finance
attack2026-09-25
TransUnion, 2025-08-26third-party
data_types2026-09-25
TransUnion, 2025-08-26["names","dob","ssn","addresses","phone","emails"]
records2026-09-25
TransUnion, 2025-08-264400000
summary2026-09-25
TransUnion, 2025-08-26TransUnion told Maine's attorney general that a July 28, 2025 breach of a third-party application used for US consumer support exposed personal data of more than 4.4 million people, including names, birth dates and SSNs (a data sample also
title2026-09-25
TransUnion, 2025-08-26TransUnion third-party app breach exposes 4.4 million consumers
domain2026-09-25
TransUniontransunion.com
data_types2026-09-25
TransUnion, 2025-08-26["names"]
records_basis2026-09-25
TransUnion, 2025-08-26organization
records2026-09-25
TransUnion, 2025-08-264461511
disclosed2026-09-25
TransUnion, 2025-08-262025-08-26
discovered2026-09-25
TransUnion, 2025-08-262025-07-29
Added2026-09-25
TransUnion, 2022-08-04
Added2026-09-25
TransUnion, 2025-08-26
Added2026-09-25
TransUnion