HackingTechnologyHealthcareInformationVulnerability ExploitData ExfiltratedSupply Chain (3P Vendor)Identity (basic)LowContained

Welltok

bd_8ca9e17ac4dfbe9b · schema v1 · pii pii-v1

Severity

Low

Discovered

Jul 26, 2023

Filed

Dec 22, 2023

To disclose

19 weeks

Affected

Not disclosed

Linked

22 filings

Confidence

65%

Full breach record for Welltok →3 incidents on file

Welltok, Inc. notified consumers of a data breach involving its MOVEit Transfer server, a third-party tool used to manage data for OSF Healthcare. An unknown actor exploited software vulnerabilities to access the server on May 30, 2023, and exfiltrated personal information, including names. Welltok engaged third-party cybersecurity specialists and is offering credit monitoring services to affected individuals.

J jump to incidentP pin to compareR raw source

Vermont clock✗ VT AG >45 bday19 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 · 21 weeks / 149 days

May 30, 2023

Begins

Jul 26, 2023

Discovered

Dec 22, 2023

Filed

vs. sector median

+6 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

Maine State AGbd_0328ea1fdab9c4592023-12-22Verified by operator
California State AGbd_5e4b7107bd1176de2023-12-22Verified
New Hampshire State AGbd_db6e6d3e58b51e902023-12-22Verified
Maine State AGbd_063b1deb8c7a2bff2023-12-15 · +7dVerified by operator

Show 6 more filings ↓up to 154d gap

Vermont State AGbd_69d99adc86ef4dcf2023-12-15 · +7dVerified
California State AGbd_b765e398c9850ca12023-12-15 · +7dVerified
New Hampshire State AGbd_e5a605be617ae3962023-12-15 · +7dVerified
California State AGbd_cf54a7692c42c7aa2024-01-08 · +17dVerified by operator
California State AGbd_d2c5cdddd25b96d92024-02-28 · +68dVerified by operator
South Carolina State AGbd_57aa66e4578bd8912024-05-24 · +154dVerified by operator

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: Dec 22, 2023
Affected individuals: Not disclosed
Data types: Identity (basic)
Attack vector: Third-Party / Supply Chain
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
Undertook a time-consuming and detailed reconstruction and review of the data stored on the server
Offering complimentary access to Experian IdentityWorks
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: 19 weeks(133 days from discovery to filing)
Compliance flags: VT AG >45 bday
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

New Hampshire State AG+7d

Vermont State AG+7d · this page

California State AG+24d

California State AG+75d

South Carolina State AG+161d

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://ago.vermont.gov/document/2023-12-22-welltok-progress-software-moveit-data-breach-notice-consumers
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Dec 22, 2023
Raw hash: af7e39e87de9c20d2144553ea2780f82a235c4206cccad13b7fb66c218ff06ff

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

ComplianceVT AG >45 bday

Extraction provenanceno artifact recorded

Source provenanceago.vermont.gov