Healthcare providers, insurers, and business associates appear regularly in Washington Attorney General breach notifications when medical or health-insurance data is exposed. Unlike California’s name-only list, Washington publishes Washingtonians-affected counts — making it possible to track healthcare-sector exposure by month.
Washington Healthcare Breaches by Month (AG, 2026)
The dashboard below tracks Washington Attorney General breach notifications in 2026 that exposed medical or health-insurance information, by month. So far that filter shows 34 reports and 388,571 Washingtonians affected, current through Sep 11, 2026.
Interactive Tracker
Washington Healthcare Breaches: 2026 AG Reports
Washingtonians affected by 2026 breaches exposing medical or health-insurance data, by month
Show largest 2026 Washington healthcare breach reports
| Entity | Published | Washingtonians affected | Sector |
|---|---|---|---|
| DentaQuest, LLC | Jul 16, 2026 | 148,300 | Healthcare / Medical |
| Aesto, LLC (Grant County Public Hospital District #2) | Aug 4, 2026 | 37,253 | Government / Education |
| Paylogix, LLC | Aug 14, 2026 | 28,449 | Healthcare / Medical |
| Baylor Genetics | Aug 14, 2026 | 27,243 | Healthcare / Medical |
| Everside Health (Aesto, LLC) | Jul 31, 2026 | 21,308 | Healthcare / Medical |
Source: Washington State Attorney General - Data Breach Notifications, industry-filtered. Data current through Sep 11, 2026.
Sources
State AG breach portals
Notable Washington Healthcare Notices
| Organization | Washingtonians Affected | Date Published |
|---|---|---|
| DentaQuest, LLC | 148,300 | Jul 16, 2026 |
| Aesto, LLC (Grant County Public Hospital District #2) | 37,253 | Aug 4, 2026 |
| Paylogix, LLC | 28,449 | Aug 14, 2026 |
| Baylor Genetics | 27,243 | Aug 14, 2026 |
| Everside Health (Aesto, LLC) | 21,308 | Jul 31, 2026 |
Why Email Security Matters Here
Many healthcare breaches begin with phishing or compromised email — a common path to AG notifications involving ePHI. Washington’s breach notification law requires timely reporting when personal information of state residents is exposed.
Check any practice’s posture at audit.emailmenow.com/?industry=healthcare-practices&state=washington.
Source: Washington AG — Data Breach Notifications
Related trackers
- Texas OAG YTD dashboard
- Government & education tracker
- Monitoring guide
- All state AG trackers
- Washington healthcare breaches (2026)
- Washington law firm breaches (2026)
- CA September roundup
- TX September roundup
- WA September roundup
- TX Parks breach
- Have I Been Pwned
- HIBP September roundup
- Breach data week (September)
- HHS OCR September roundup
- SEC 8-K September roundup
Sources
State AG breach portals
State AG reporting & notices
Federal registries
Breach databases & aggregators
News & analysis