HackingHealthcareHealthcareStolen CredentialsCustomer Data InvolvedDelayed DiscoveryIdentity (basic)PHIHealth (basic)LowContained

AltaMed Health Services Corporation

bd_1682a4db2ffe3064 · schema v1 · pii pii-v1

Severity

Low

Discovered

Aug 9, 2024

Filed

Jun 13, 2025

To disclose

44 weeks

Affected

Not disclosed

Linked

2 filings

Confidence

65%

Full breach record for AltaMed Health Services Corporation →9 incidents on file

AltaMed Health Services Corporation notified the California Attorney General of an incident where an unauthorized individual accessed an email account between August 5 and August 9, 2024. AltaMed became aware of suspicious activity on August 9, 2024, and contained the incident by disconnecting systems. The investigation, finalized on April 16, 2025, determined that names and potentially protected health information were involved. No evidence of fraudulent use was found. AltaMed enhanced security protocols and offered 24 months of credit monitoring to affected individuals.

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California clockDiscovered Aug 9, 2024 → Notified Jun 13, 2025308d ✗ CA 60-day late44 weeks discovery → filing

Incident timeline

undetected · 4 days

discovery → filing · 44 weeks / 308 days

Aug 5, 2024

Begins

Aug 9, 2024

Discovered

Jun 13, 2025

Filed

vs. sector median

+34 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_39a34b1fb2ca99752025-06-13Verified

Name: AltaMed Health Services Corporation
norm: altamed health

Name: AltaMed Health Services Corporation
norm: altamed health
Industry: Healthcarellm

Discovered: Aug 9, 2024
Breach occurred: Aug 5, 2024 – Aug 9, 2024
Undetected for: 4 daysoccurrence → discovery
Materiality determined: —
Notification sent: Jun 13, 2025
Affected individuals: Not disclosed
Data types: Identity (basic)PHIHealth (basic)
Attack vector: Unauthorized Access
MITRE ATT&CK: T1078 Valid AccountsT1114 Email Collection
Threat actor: External
Initial access: valid_credentials

During the incident: Took steps to stop the activity
Disconnected the systems to prevent further impact
Launched a detailed investigation to determine the nature and scope of certain suspicious email related activity
Undertook a comprehensive and time-intensive review of the potentially impacted data with the assistance of additional data security specialists
Enhanced its existing security protocols
Providing access to credit monitoring services for twenty-four (24) months at no cost
Changes made: Enhanced its existing security protocols
Continues to evaluate its policies and procedures related to data privacy and security
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 44 weeks(308 days from discovery to filing)
Compliance flags: CA 60-day late · 308d
Discovery-date grounding: letter-groundedThe discovery date is the detection date narrated in the notification letter — the defensible tier.
Clock breakdown: Statute Window Elapsed Threshold Status
California
Discovered: Aug 9, 2024
→ Notified: Jun 13, 2025
308d 60 days (analyst band, pre-2026 discoveries) CA 60-day late

Statute	Window	Elapsed	Threshold	Status
California	Discovered: Aug 9, 2024 → Notified: Jun 13, 2025	308d	60 days (analyst band, pre-2026 discoveries)	CA 60-day late

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 2 filings

View merged incident ↗

HHS OCRJun 13 · first

California State AGJun 13 · first · this page

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://oag.ca.gov/ecrime/databreach/reports/sb24-604053
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Jun 13, 2025
Raw hash: ee7f5f93cc1c94d337ea93d950f6bbe4e637528187d86287f30fbb2b770bd1fa

Linked disclosures

Regulatory filings (1) · sorted by filing gap

Reporting entityAltaMed Health Services Corporation

Victim entityAltaMed Health Services Corporation

Incidentdiscovered Aug 9, 2024

Stated responseTook steps to stop the activity

ComplianceCA 60-day late

Extraction provenanceno artifact recorded

Source provenanceoag.ca.gov