HackingHealthcareHealthcareCustomer Data InvolvedPIIIdentity (basic)HighContained

Henry Ford Health System

bd_6ad66ed79ae7fd03 · schema v1 · pii pii-v1

Severity

High

Discovered

May 16, 2023

Filed

Jul 25, 2023

To disclose

10 weeks

Affected · nationwide

168,2152 in this filing

Linked

2 filings

Confidence

66%

Full breach record for Henry Ford Health System →10 incidents on file

Henry Ford Health reported an external system breach (hacking) occurring on March 30, 2023, discovered on May 16, 2023. The incident affected 168,215 individuals, including 2 Maine residents. The breach involved the acquisition of personal identifiers. Written notification was sent to affected individuals on July 14, 2023.

J jump to incidentP pin to compareR raw source

Maine clockDiscovered May 16, 2023 → Filed with AG Jul 25, 202370d ⏱ ME AG >30d10 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

undetected · 47 days

discovery → filing · 10 weeks / 70 days

Mar 30, 2023

Begins

May 16, 2023

Discovered

Jul 25, 2023

Filed

vs. sector median

+1 wks slower

This filing is one of 2 filings about the same incident.View merged incident

Linked disclosures

Why this link?

Regulatory filings (1) · sorted by filing gap

HHS OCRbd_f0eea9e5dc7475772023-06-06 · +49dCandidate

Name: Henry Ford Health System
norm: henry ford health system
Domain: henryford.com
Industry: Healthcare

Name: Henry Ford Health System
norm: henry ford health system
Domain: henryford.com
Industry: Healthcare
Industry: Healthcarellm

Discovered: May 16, 2023
Breach occurred: Mar 30, 2023
Undetected for: 47 daysoccurrence → discovery
Materiality determined: —
Notification sent: Jul 14, 2023
Affected individuals: 168,215state + nationwide
Data types: PIIIdentity (basic)
Attack vector: Unauthorized Access
MITRE ATT&CK: T1190 Exploit Public-Facing Application
Threat actor: External
Regulator citations: Filed data breach notice with Maine Attorney General
Initial access: exploit_public_facing

During the incident: Sent written notification to affected individuals
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 10 weeks(70 days from discovery to filing)
Compliance flags: ME AG >30d · 70d
Discovery-date grounding: 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.
Clock breakdown: Statute Window Elapsed Threshold Status
Maine
Discovered: May 16, 2023
→ Filed with AG: Jul 25, 2023
70d 30 days (soft) ME AG >30d

Statute	Window	Elapsed	Threshold	Status
Maine	Discovered: May 16, 2023 → Filed with AG: Jul 25, 2023	70d	30 days (soft)	ME AG >30d

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 2 filings · 2 states

View merged incident ↗

HHS OCRJun 6 · first

Maine State AG+49d · this page

Pattern: first filing Jun 6 (MI), last Jul 25 (ME) — a 49-day rolling notification. Rolling spreads often mean counsel is filing as thresholds trip per state. Why this link?

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.

Source URL: https://www.maine.gov/agviewer/content/ag/985235c7-cb95-4be2-8792-a1252b4f8318/7ac05fa3-a1b4-414d-a459-3d94e9a2d2e9.shtml
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Jul 25, 2023
Raw hash: fafddc3bbba8dc15d48eabac0615e58a820ae8b97febb457a473d22f08621bcd

Linked disclosures

Regulatory filings (1) · sorted by filing gap

Reporting entityHenry Ford Health System

Victim entityHenry Ford Health System

Incidentdiscovered May 16, 2023

Stated responseSent written notification to affected individuals

ComplianceME AG >30d

Extraction provenanceno artifact recorded

Source provenancewww.maine.gov