HackingHealthcareHealthcareVulnerability ExploitSupply Chain (3P Vendor)Customer Data InvolvedIdentity (basic)Government IDMediumContained

AltaMed Health Services Corporation

bd_f20b0d4b99035379 · schema v1 · pii pii-v1

Severity

Medium

Discovered

Jun 1, 2023

Filed

Jun 29, 2023

To disclose

28 days

Affected

Not disclosed

Linked

2 filings

Confidence

64%

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

AltaMed Health Services Corporation notified the California AG of a data breach involving its third-party vendor, Vitality Group. The incident stemmed from a vulnerability in the MOVEit file transfer program exploited on May 30, 2023. Vitality identified the risk on June 1, 2023, and disconnected the server. Affected data included names, addresses, dates of birth, email addresses, and Social Security numbers. AltaMed is offering two years of credit monitoring to affected members.

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California clockDiscovered Jun 1, 2023 → Notified Jun 28, 202326d ✓ CA 60-day OK28 days discovery → filing

Incident timeline

undetected · 2 days

discovery → filing · 28 days

May 30, 2023

Begins

Jun 1, 2023

Discovered

Jun 29, 2023

Filed

vs. sector median

6 wks faster

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

Part of Progress Software Corporation supply-chain incident (2023) — a supply-chain cascade affecting multiple organizations.View cascade →

Linked disclosures

Why this link?

Regulatory filings (1) · sorted by filing gap

California State AGbd_80e321317c99d13c2023-08-04 · +36dCandidate

Name: AltaMed Health Services Corporation
norm: altamed health

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

Discovered: Jun 1, 2023
Breach occurred: May 30, 2023 – May 30, 2023
Undetected for: 2 daysoccurrence → discovery
Materiality determined: —
Notification sent: Jun 28, 2023
Affected individuals: Not disclosed
Data types: Identity (basic)Government ID
Data elements: Date of birth
Attack vector: Third-Party / Supply Chain
MITRE ATT&CK: T1190 Exploit Public-Facing ApplicationT1195 Supply Chain Compromise
Threat actor: External
Third party: via Progress Software (MOVEit)
Initial access: supply_chain

During the incident: Disconnected the MOVEit software server
Temporarily disabled access to MOVEit
Began forensics investigations
Offering 2 years of complimentary credit monitoring through Experian
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 28 days(28 days from discovery to filing)
Compliance flags: CA 60-day OK · 26d
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: Jun 1, 2023
→ Notified: Jun 28, 2023
26d 60 days (analyst band, pre-2026 discoveries) CA 60-day OK

Statute	Window	Elapsed	Threshold	Status
California	Discovered: Jun 1, 2023 → Notified: Jun 28, 2023	26d	60 days (analyst band, pre-2026 discoveries)	CA 60-day OK

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 2 filings

View merged incident ↗

California State AGJun 29 · first · this page

California State AG+36d

Pattern: first filing Jun 29 (CA), last Aug 4 (CA) — a 36-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://oag.ca.gov/ecrime/databreach/reports/sb24-568687
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Jun 29, 2023
Raw hash: 0c4cb0722a51c9d16106cfdf7bd5a889f94159bf144f56efddcca4cda4692e84

Linked disclosures

Regulatory filings (1) · sorted by filing gap

Reporting entityAltaMed Health Services Corporation

Victim entityAltaMed Health Services Corporation

Incidentdiscovered Jun 1, 2023

Stated responseDisconnected the MOVEit software server

ComplianceCA 60-day OK

Extraction provenanceno artifact recorded

Source provenanceoag.ca.gov