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Regulator-posted notice

Breach notice filed by Western Alliance Bank (March 2025)

Organization named: Western Alliance Bank Provisional: identity as filed, not yet matched to the directory
Type as the source lists it: A threat actor obtained unauthorized access to certain files transferred through a third-party secure file transfer software used by WAB

What the sources say

Maryland Attorney General security breach notices Primary notice

Posted on the Maryland Attorney General security breach notices with a submission date of March 14, 2025.

Organization as reported
Western Alliance Bank
Category as reported
A threat actor obtained unauthorized access to certain files transferred through a third-party secure file transfer software used by WAB
Information types as reported
Name, date of birth, Social Security number, financial account number, driver's license number, tax identification number, and/or passport
Submission date
March 14, 2025
Observed by BreachRecords
2026-10-19 05:01 UTC (revision 48479, list:Security-Breach-Notices-2025:item:67)
Archived copy
Held in the private archive (provenance)

The listing records a filing with the agency; it is not a finding by the agency.

Figures, per source

  • 11 individuals affected (residents of the reporting state), according to the Maryland Attorney General security breach notices, source date March 14, 2025, revision observed 2026-10-19.

Each figure is one source's figure with the basis that source gave. Figures from different sources are shown side by side and are not added, averaged or chosen between.

Timeline

Source dates are the dates the sources give. Observation dates are when BreachRecords recorded each revision.

  • Submission date (Maryland Attorney General security breach notices)
  • Observed by BreachRecords (revision 48479)
  • Approved by a reviewer

Organizations linked by a reviewer

  • Western Alliance Bank Named as the filer Provisional: identity as filed, not yet matched to the directory Linked 2026-11-04, method manual.

Archived evidence

  • 702a823ff570849f6017115a54be4f760c6541d6fa8a04f772fd9e9e4fe1e138
    application/json, 182,820 bytes, retrieved from Maryland Attorney General security breach notices, 2026-10-19 05:01 UTC. Archived privately · Provenance · Source page

Records reflect source filings as of the dates shown. BreachRecords is not a regulator.

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