MUFG Union Bank, N.A.

MUFG Union Bank, N.A. notified California AG on Dec 11, 2018 of a data breach, which occurred on Nov 22, 2018. Data exposed: Financial / bank account, Usernames / passwords, Name.

Organization: MUFG Union Bank, N.A.
Source: California AG · source record
Date reported: Dec 11, 2018
Date(s) of breach: Friday, November 9, 2018Thursday, November 22, 2018
Residents affected: Not published by this source
Data exposed: Financial / bank account Usernames / passwords Name
Notice letter: Sample notice (PDF)
First seen by BreachTally: 2026-10-30 16:14 UTC

Dates and counts as filed by the organization with the agency. The breach window and the report date often differ by months.

Data reproduced from a public government filing. Spot an error? Email support@breachtally.com with the record link. Corrections are applied and noted.