Regulator-posted notice

Breach notice filed by Sno-Isle Regional Library System (April 2023)

Organization named: Sno-Isle Regional Library System 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 April 21, 2023.

Organization as reported: Sno-Isle Regional Library System
Information types as reported: Name; Social Security Number; Financial & Banking Information
Incident dates as reported: March 22, 2023
Submission date: April 21, 2023
Observed by BreachRecords: 2026-10-19 04:57 UTC (revision 25964, page:17:row:23)
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 April 21, 2023.

Organization as reported: Sno-Isle Regional Library System, WA
Entity type as reported: Government
Category as reported: Cyberattack; Phishing
Incident dates as reported: March 22, 2023 to March 22, 2023
Discovery date as reported: April 18, 2023
Submission date: April 21, 2023
Observed by BreachRecords: 2026-11-01 20:03 UTC (revision 63155, row:871)
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

531 individuals affected (residents of the reporting state), according to the Washington Attorney General data breach notifications, source date April 21, 2023, revision observed 2026-10-19.
531 individuals affected (residents of the reporting state), according to the Washington data breach notifications dataset, source date April 21, 2023, 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.

2023-04-21Submission date (Washington Attorney General data breach notifications)
2023-04-21Submission date (Washington data breach notifications dataset)
2026-10-19Observed by BreachRecords (revision 25964)
2026-11-01Observed by BreachRecords (revision 63155)
2026-11-04Approved by a reviewer

Organizations linked by a reviewer

Sno-Isle Regional Library System Named as the filer Provisional: identity as filed, not yet matched to the directory Linked 2026-11-04, method manual.

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
8653f8fba7b7c5a82adf235cd0b4863028457c61f012ad12147f0915a84ed923
text/html, 154,490 bytes, retrieved from Washington Attorney General data breach notifications, 2026-10-19 04:57 UTC. Archived privately · Provenance · Source page

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

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