DisclosureLens
UnknownOtherMedium

Premise Health Holding Corp.

bd_378a4fb28728846b · schema v1 · pii pii-v2

Severity

Medium

Discovered

Sep 18, 2026

Filed

Nov 6, 2026

To disclose

7 weeks

Affected

49,444state residents only

Linked

3 filings

Confidence

95%
Full breach record for Premise Health Holding Corp. →2 incidents on file

Premise Health Holding Corp, a health sector entity reported a unauthorized access incident to the Washington Attorney General. The organization became aware of the incident on 2026-09-18 and filed notice on 2026-11-06. 49,444 Washington residents were affected. 49 days elapsed between awareness and notification. 176 days to identify the breach. 0 days to contain the breach.

Washington clock⏱ WA AG >30d7 weeks discovery → filing
⚠ AG web formThe discovery date came from the AG web-form field, which is systematically later than the detection date stated in the letter. Treat the clock as indicative.

Incident timeline

discovery → filing · 7 weeks / 49 days

Sep 18, 2026

Discovered

Nov 6, 2026

Filed

vs. sector median

+1 wks slower

This filing is one of 3 filings about the same incident.View merged incident

Linked disclosures

Why this link?

Regulatory filings (2) · sorted by filing gap

Filing propagation · 3 filings · 3 states

View merged incident ↗
Vermont State AGNov 6 · first
Washington State AGNov 6 · first · this page
Texas State AG+4d

Evidence ladder

Leak-site claim

Attacker assertion only. Establishes: claim date, group, alleged victim.

Press / market report

Unlocks: incident narrative, operational impact. Still no compliance clock.

State AG / regulator filingThis record

Unlocks: discovery date, data types, affected count, compliance clock.

SEC 8-K / victim statement

Unlocks: materiality, stated response, full audit trail. Ceiling removed.