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Regulator-posted notice

Breach notice filed by McCarthy & Holthus LLP (January 2024)

Organization named: McCarthy & Holthus LLP Provisional: identity as filed, not yet matched to the directory

What the sources say

Washington Attorney General data breach notifications Primary notice

Posted on the Washington Attorney General data breach notifications with a submission date of Jan. 16, 2024.

Organization as reported
McCarthy & Holthus LLP
Information types as reported
Name; Social Security Number; Financial & Banking Information; Full Date of Birth; Other
Incident dates as reported
Oct. 1, 2023
Submission date
Jan. 16, 2024
Observed by BreachRecords
2026-10-19 04:56 UTC (revision 25735, page:12:row:44)
Archived copy
Held in the private archive (provenance)

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

Washington data breach notifications dataset (data.wa.gov sb4j-ca4h) Duplicate filing

Posted on the Washington data breach notifications dataset with a submission date of Jan. 16, 2024.

Organization as reported
McCarthy & Holthus LLP, CA
Entity type as reported
Business
Category as reported
Cyberattack; Ransomware
Incident dates as reported
Oct. 1, 2023 to Oct. 8, 2023
Discovery date as reported
Oct. 7, 2023
Submission date
Jan. 16, 2024
Observed by BreachRecords
2026-11-01 20:03 UTC (revision 63362, row:1078)
Extraction
Parsed from a document; extraction confidence 0.85
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

  • 700 individuals affected (residents of the reporting state), according to the Washington Attorney General data breach notifications, source date Jan. 16, 2024, revision observed 2026-10-19.
  • 700 individuals affected (residents of the reporting state), according to the Washington data breach notifications dataset, source date Jan. 16, 2024, revision observed 2026-11-01.

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 (Washington Attorney General data breach notifications)
  • Submission date (Washington data breach notifications dataset)
  • Observed by BreachRecords (revision 25735)
  • Observed by BreachRecords (revision 63362)
  • Approved by a reviewer

Organizations linked by a reviewer

  • McCarthy & Holthus LLP Named as the filer Provisional: identity as filed, not yet matched to the directory Linked 2026-11-04, method manual.

Archived evidence

  • 200db8e2e0051b14574ee7050b33d8b2c65adaf3f0c2266009bdf41f6e670b58
    text/html, 156,472 bytes, retrieved from Washington Attorney General data breach notifications, 2026-10-19 04:56 UTC. Archived privately · Provenance · Source page
  • 264d45f73831ec8fc298837002b836f792a7cfd7f3d6b4d2128484a23223c042
    text/csv, 453,656 bytes, retrieved from Washington data breach notifications dataset, 2026-11-01 20:03 UTC. Archived privately · Provenance · Source page

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

Request a correction

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