MalwareHealthcareHealthcareRansomwareData ExfiltratedData EncryptedCustomer Data InvolvedEmployee Data InvolvedRansom DemandedIdentity (basic)Government IDFinancial accountHealth (basic)PHIHighContained

Ascension Health Alliance

bd_ffe2ffef268362d8 · schema v1 · pii pii-v1

Severity

High

Discovered

May 8, 2024

Filed

Dec 19, 2024

To disclose

32 weeks

Affected

5,787state residents only

Linked

10 filings

Confidence

69%

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

Ascension Health reports a ransomware incident detected May 8, 2024, affecting patients and employees. Data exfiltrated included PHI, SSNs, medical record numbers, and financial data. 5,787 Washington residents notified on Dec 19, 2024. Response included FBI/CISA notification and IDX credit monitoring services.

J jump to incidentP pin to compareR raw source

Washington clock✗ WA AG >90d32 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 · 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

Maine State AGbd_ffefbbb101b0be3f2024-12-19Verified
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: 5,787state-resident count only
Data types: Identity (basic)Government IDFinancial accountHealth (basic)PHI
Data elements: NameSocial Security numberDriver's licence numberFinancial account numberDate of birthMilitary ID numberPassport numberHealth insurance IDMedical information
WA-stated cause: Cyberattack
WA-stated duration: lifecycle 100-199dexposure 100-199d
WA-stated discovery: Found while ongoing
Attack vector: Ransomware
MITRE ATT&CK: T1486 Data Encrypted for ImpactT1041 Exfiltration Over C2 Channel
Threat actor: ExternalFinancial
Regulator citations: Notified the FBINotified the Cybersecurity and Infrastructure Agency (CISA)

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
Offered affected individuals 24 months of credit and CyberScan monitoring, a $1,000,000 insurance reimbursement policy, and fully managed ID theft recovery services through IDX
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: WA AG >90d
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.

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

Maine State AG+18d

Washington 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://agportal-s3bucket.s3.amazonaws.com/databreach/BreachA31753.pdf
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: 9acf0f16e4d8cea44d6f94f8949cdb3443b880effaa5af23b1712be9e77a269c

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

ComplianceWA AG >90d

Extraction provenanceno artifact recorded

Source provenanceagportal-s3bucket.s3.amazonaws.com