MalwareHealthcareHealthcareRansomwareData ExfiltratedData EncryptedCustomer Data InvolvedEmployee Data InvolvedTargetedIdentity (basic)Government IDFinancial accountHealth (basic)PHICriticalContained

Ascension Health Alliance

bd_ffefbbb101b0be3f · schema v1 · pii pii-v1

Severity

Critical

Discovered

May 8, 2024

Filed

Dec 19, 2024

To disclose

32 weeks

Affected · nationwide

5,599,699658 in this filing

Linked

10 filings

Confidence

66%

Full breach record for Ascension Health Alliance →12 incidents on file

Ascension Health disclosed a ransomware attack detected on May 8, 2024, affecting approximately 5.6 million individuals nationwide, including 658 Maine residents. The incident exposed PHI, government IDs, and financial data. Notifications were sent on December 19, 2024, offering 24 months of credit monitoring and ID theft protection.

J jump to incidentP pin to compareR raw source

Maine clockDiscovered May 8, 2024 → Filed with AG Dec 19, 2024225d ✗ ME AG >90d32 weeks discovery → filing

⚠ unattributedNo provenance was recorded for this discovery date and it matches no other date on the record. It may be correct, but it is not independently grounded.

Incident timeline

undetected · 1 days

discovery → filing · 32 weeks / 225 days

May 7, 2024

Begins

May 8, 2024

Discovered

Dec 19, 2024

Filed

vs. sector median

+20 wks slower

This filing is one of 10 about the same incident.View merged incident

Linked disclosures

Why this link?

Regulatory filings (9) · sorted by filing gap

Oregon State AGbd_87337b5050c1dc472024-12-19Verified
California State AGbd_afc6dca482d6c28a2024-12-19Verified
Massachusetts State AGbd_de54a21bf0edc2992024-12-19Verified
Delaware State AGbd_f10476fe89d1d25d2024-12-19Verified

Show 5 more filings ↓up to 50d gap

Washington State AGbd_ffe2ffef268362d82024-12-19Verified
Illinois State AGbd_ca4d2ffed869b7032024-12-01 · +18dVerified
California State AGbd_8febdcacf791a2052025-02-03 · +46dVerified
Oregon State AGbd_a6331b2f68fc294d2025-02-03 · +46dVerified
New Hampshire State AGbd_cea8e043db648dd82025-02-07 · +50dVerified

Name: Ascension Health Alliance
norm: ascension health alliance
Domain: ascension.org

Name: Ascension Health Alliance
norm: ascension health alliance
Domain: ascension.org
Industry: Healthcarellm

Discovered: May 8, 2024
Breach occurred: May 7, 2024 – May 8, 2024
Undetected for: 1 dayoccurrence → discovery
Materiality determined: —
Notification sent: Dec 19, 2024
Affected individuals: 5,599,699state + nationwide
Data types: Identity (basic)Government IDFinancial accountHealth (basic)PHI
Attack vector: Ransomware
MITRE ATT&CK: T1486 Data Encrypted for ImpactT1041 Exfiltration Over C2 ChannelT1119 Automated Collection
Threat actor: ExternalFinancial
Regulator citations: Notified the FBINotified the Cybersecurity and Infrastructure Agency (CISA)
Initial access: exploit_public_facing

During the incident: Initiated an investigation with the assistance of leading cybersecurity experts
Reported the incident to law enforcement and government partners, including the FBI and the Cybersecurity and Infrastructure Agency (CISA)
Put in place additional monitoring to further protect its systems
Launched an investigation with leading cybersecurity experts
Notified law enforcement and government regulators
Implemented enhanced security measures to prevent similar incidents from occurring in the future
Changes made: Implemented enhanced security measures to prevent similar incidents from occurring in the future
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 32 weeks(225 days from discovery to filing)
Compliance flags: ME AG >90d · 225dME resident >60d · 225d
Discovery-date grounding: unattributedNo provenance was recorded for this discovery date and it matches no other date on the record. It may be correct, but it is not independently grounded.
Clock breakdown: Statute Window Elapsed Threshold Status
Maine
Discovered: May 8, 2024
→ Filed with AG: Dec 19, 2024
225d 90 days ME AG >90d
Maine
Discovered: May 8, 2024
→ Notified: Dec 19, 2024
225d 60 days (analyst band; statutory cap is 30 days) ME resident >60d

Statute	Window	Elapsed	Threshold	Status
Maine	Discovered: May 8, 2024 → Filed with AG: Dec 19, 2024	225d	90 days	ME AG >90d
Maine	Discovered: May 8, 2024 → Notified: Dec 19, 2024	225d	60 days (analyst band; statutory cap is 30 days)	ME resident >60d

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 10 filings · 8 states

View merged incident ↗

Illinois State AGDec 1 · first

Oregon State AG+18d

California State AG+18d

Massachusetts State AG+18d

Delaware State AG+18d

Washington State AG+18d

Maine State AG+18d · this page

California State AG+64d

Oregon State AG+64d

New Hampshire State AG+68d

Pattern: first filing Dec 1 (IL), last Feb 7 (NH) — a 68-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/e55264f2-ff87-4b28-874d-653cfb735fe6.html
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Dec 19, 2024
Raw hash: 6138fe1729bd307f7089ed2d8d0d794ba56ca63373bfd1f81450e5f462c90b1e

Linked disclosures

Regulatory filings (9) · sorted by filing gap

Reporting entityAscension Health Alliance

Victim entityAscension Health Alliance

Incidentdiscovered May 8, 2024

Stated responseInitiated an investigation with the assistance of leading cybersecurity experts

ComplianceME AG >90d

Extraction provenanceno artifact recorded

Source provenancewww.maine.gov