John Muir Health - Walnut Creek Medical Center
bd_98e773795f9aaf6e · schema v1 · pii pii-v1
Full breach record for John Muir Health - Walnut Creek Medical Center →John Muir Health - Walnut Creek Medical Center disclosed an incident where a staff member created a website linking to an Excel file containing patient health information (name, facility, room, diagnosis, dates) without proper access controls. The website was active from July 1, 2021, until it was decommissioned on March 24, 2023. The Privacy Office was notified on March 22, 2023. No financial information was involved. The organization disabled the link and decommissioned the site, and is re-educating staff and reviewing policies.
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Incident timeline
Jul 1, 2021
Begins
Mar 22, 2023
Discovered
Apr 13, 2023
Filed
vs. sector median
9 wks faster
Linked disclosures
Why this link?Regulatory filings (1) · sorted by filing gap
- HHS OCRbd_386a67908bbde91f2023-04-13Candidate
Filing propagation · 2 filings
View merged incident ↗Evidence ladder
Attacker assertion only. Establishes: claim date, group, alleged victim.
Unlocks: incident narrative, operational impact. Still no compliance clock.
Unlocks: discovery date, data types, affected count, compliance clock.
Unlocks: materiality, stated response, full audit trail. Ceiling removed.