HackingTechnologyHealthcareInformationVulnerability ExploitCapture Stored DataData ExfiltratedTargetedIdentity (basic)Health (basic)Financial accountHighContained

Welltok

bd_57aa66e4578bd891 · schema v1 · pii pii-v1

Severity

High

Discovered

Jul 26, 2023

Filed

May 24, 2024

To disclose

43 weeks

Affected

135,359state residents only

Linked

22 filings

Confidence

64%

Full breach record for Welltok →3 incidents on file

Welltok, Inc. notified South Carolina residents of a data breach involving its MOVEit Transfer server. An unknown actor exploited software vulnerabilities on May 30, 2023, to access the server and exfiltrate data including names, health information, and insurance details. Welltok engaged third-party cybersecurity specialists and is offering 12 months of credit monitoring.

J jump to incidentP pin to compareR raw source

South Carolina clock✓ SC CRA notice due43 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 · 57 days

discovery → filing · 43 weeks / 303 days

May 30, 2023

Begins

Jul 26, 2023

Discovered

May 24, 2024

Filed

vs. sector median

+30 wks slower

This filing is one of 22 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 (10) · sorted by filing gap

California State AGbd_d2c5cdddd25b96d92024-02-28 · +86dVerified by operator
California State AGbd_cf54a7692c42c7aa2024-01-08 · +137dVerified by operator
Maine State AGbd_0328ea1fdab9c4592023-12-22 · +154dVerified by operator
California State AGbd_5e4b7107bd1176de2023-12-22 · +154dVerified

Show 6 more filings ↓up to 161d gap

Vermont State AGbd_8ca9e17ac4dfbe9b2023-12-22 · +154dVerified
New Hampshire State AGbd_db6e6d3e58b51e902023-12-22 · +154dVerified
Maine State AGbd_063b1deb8c7a2bff2023-12-15 · +161dVerified by operator
Vermont State AGbd_69d99adc86ef4dcf2023-12-15 · +161dVerified
California State AGbd_b765e398c9850ca12023-12-15 · +161dVerified
New Hampshire State AGbd_e5a605be617ae3962023-12-15 · +161dVerified

Showing first 10 of 21 linked disclosures.

Name: Welltok
norm: welltok
Domain: welltok.com

Name: Welltok
norm: welltok
Domain: welltok.com
Industry: TechnologyllmHealthcarellm

Discovered: Jul 26, 2023
Breach occurred: May 30, 2023
Undetected for: 57 daysoccurrence → discovery
Materiality determined: —
Notification sent: Feb 21, 2024
Affected individuals: 135,359state-resident count only
Data types: Identity (basic)Health (basic)Financial account
Attack vector: Misconfiguration
MITRE ATT&CK: T1190 Exploit Public-Facing ApplicationT1041 Exfiltration Over C2 Channel
Threat actor: ExternalFinancial
Initial access: exploit_public_facing

During the incident: Launched an additional investigation with the assistance of third-party cybersecurity specialists
Conducted a full reconstruction of our systems and historical data
Undertook an exhaustive and detailed reconstruction and review of the data stored on the server
Coordinating efforts to review and verify the affected information
Offering complimentary access to Experian IdentityWorks for 12 months
Changes made: Reviewing and enhancing our existing policies and procedures related to data privacy
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 43 weeks(303 days from discovery to filing)
Compliance flags: SC CRA notice due
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.

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 11 filings · 5 states

View merged incident ↗

Maine State AGDec 15 · first

Vermont State AGDec 15 · first

California State AGDec 15 · first

New Hampshire State AGDec 15 · first

Maine State AG+7d

California State AG+7d

Vermont State AG+7d

New Hampshire State AG+7d

California State AG+24d

California State AG+75d

South Carolina State AG+161d · this page

Pattern: first filing Dec 15 (ME), last May 24 (SC) — a 161-day rolling notification. Rolling spreads often mean counsel is filing as thresholds trip per state. Why this link?

Cascade drawn from the first 10 linked disclosures of 21 — the full spread may be wider.

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://consumer.sc.gov/sites/consumer/files/Documents/Security%20Breach%20Notices/2024/WelltokInc.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: May 24, 2024
Raw hash: fd09eb5d4804d4e978a8970f516a62738b057c204e823ef30ba24cf19685c4d0

Linked disclosures

Regulatory filings (10) · sorted by filing gap

Reporting entityWelltok

Victim entityWelltok

Incidentdiscovered Jul 26, 2023

Stated responseLaunched an additional investigation with the assistance of third-party cybersecurity specialists

ComplianceSC CRA notice due

Extraction provenanceno artifact recorded

Source provenanceconsumer.sc.gov