HackingTechnologyHealthcareInformationVulnerability ExploitSupply Chain (3P Vendor)Data ExfiltratedCustomer Data InvolvedDelayed DiscoveryIdentity (basic)Health (basic)PHIMediumContained

Welltok

bd_4cb1ff71d5d1a1d7 · schema v1 · pii pii-v1

Severity

Medium

Discovered

Jul 26, 2023

Filed

Sep 22, 2023

To disclose

8 weeks

Affected

10state residents only

Linked

22 filings

Confidence

66%

Full breach record for Welltok →3 incidents on file

Welltok, Inc. disclosed a breach of its MOVEit Transfer server affecting individuals in Delaware and Rhode Island. An unknown actor exploited software vulnerabilities to access the server on May 30, 2023, and exfiltrated data including names, dates of birth, insurance IDs, and health information. Welltok notified affected individuals in December 2023, offering credit monitoring and identity restoration services.

J jump to incidentP pin to compareR raw source

Incident timeline

undetected · 57 days

discovery → filing · 8 weeks / 58 days

May 30, 2023

Begins

Jul 26, 2023

Discovered

Sep 22, 2023

Filed

vs. sector median

5 wks faster

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_063b1deb8c7a2bff2023-12-15 · +84dVerified by operator
Vermont State AGbd_69d99adc86ef4dcf2023-12-15 · +84dVerified
California State AGbd_b765e398c9850ca12023-12-15 · +84dVerified
Maine State AGbd_0328ea1fdab9c4592023-12-22 · +91dVerified by operator

Show 6 more filings ↓up to 245d gap

California State AGbd_5e4b7107bd1176de2023-12-22 · +91dVerified
Vermont State AGbd_8ca9e17ac4dfbe9b2023-12-22 · +91dVerified
New Hampshire State AGbd_db6e6d3e58b51e902023-12-22 · +91dVerified
California State AGbd_cf54a7692c42c7aa2024-01-08 · +108dVerified by operator
California State AGbd_d2c5cdddd25b96d92024-02-28 · +159dVerified by operator
South Carolina State AGbd_57aa66e4578bd8912024-05-24 · +245dVerified 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 12, 2023
Affected individuals: 10state-resident count only
Data types: Identity (basic)Government IDHealth (basic)
Attack vector: Unauthorized Access
MITRE ATT&CK: T1190 Exploit Public-Facing ApplicationT1041 Exfiltration Over C2 Channel
Threat actor: External
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
Provided credit monitoring and identity restoration services through Experian
Changes made: Reviewing and enhancing existing policies and procedures related to data privacy
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 8 weeks(58 days from discovery to filing)
Compliance flags: — (clock not assessable for this source)

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 11 filings · 6 states

View merged incident ↗

Delaware State AGSep 22 · first · this page

Maine State AG+84d

Vermont State AG+84d

California State AG+84d

Maine State AG+91d

California State AG+91d

Vermont State AG+91d

New Hampshire State AG+91d

California State AG+108d

California State AG+159d

South Carolina State AG+245d

Pattern: first filing Sep 22 (DE), last May 24 (SC) — a 245-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://attorneygeneral.delaware.gov/wp-content/uploads/sites/50/2023/12/Welltok.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Sep 22, 2023
Raw hash: f8ebc2bbcde18d4c5beb007046bbca2a27dda0d1664df8ada982b687a8e9895f

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

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenanceattorneygeneral.delaware.gov