Regulator-posted notice

Breach notice filed by Marcus & Millichap, Inc. (May 2026)

Organization named: Marcus & Millichap

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 May 14, 2026.

Organization as reported: Marcus & Millichap, Inc.
Information types as reported: Name; Full Date of Birth
Incident dates as reported: April 7, 2026
Submission date: May 14, 2026
Observed by BreachRecords: 2026-10-19 04:56 UTC (revision 25194, page:1:row:48)
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 May 14, 2026.

Organization as reported: Marcus & Millichap, Inc., CA
Entity type as reported: Business
Category as reported: Cyberattack; Phishing
Incident dates as reported: April 7, 2026 to April 10, 2026
Discovery date as reported: April 10, 2026
Submission date: May 14, 2026
Observed by BreachRecords: 2026-11-01 20:03 UTC (revision 63870, row:1586)
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

756 individuals affected (residents of the reporting state), according to the Washington Attorney General data breach notifications, source date May 14, 2026, revision observed 2026-10-19.
756 individuals affected (residents of the reporting state), according to the Washington data breach notifications dataset, source date May 14, 2026, 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.

2026-05-14Submission date (Washington Attorney General data breach notifications)
2026-05-14Submission date (Washington data breach notifications dataset)
2026-10-19Observed by BreachRecords (revision 25194)
2026-11-01Observed by BreachRecords (revision 63870)
2026-11-04Approved by a reviewer

Organizations linked by a reviewer

Marcus & Millichap Named as the filer Linked 2026-11-04, method name exact.

Archived evidence

264d45f73831ec8fc298837002b836f792a7cfd7f3d6b4d2128484a23223c042
text/csv, 453,656 bytes, retrieved from Washington data breach notifications dataset, 2026-11-01 20:03 UTC. Archived privately · Provenance · Source page
298a6e41d325d1ead4773468859b15ca7ae65050e57a23ca3b3cc96df8dcdfc0
text/html, 156,044 bytes, retrieved from Washington Attorney General data breach notifications, 2026-10-19 04:56 UTC. Archived privately · Provenance · Source page

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

Request a correction

A record that disagrees with its source, names the wrong organization or duplicates another is corrected after review. This form is about Breach notice filed by Marcus & Millichap, Inc. (May 2026). We acknowledge every request within two business days. We reply by email.

The form is being set up. Check back soon.