HackingTechnologyHealthcareInformationVulnerability ExploitData ExfiltratedCustomer Data InvolvedSupply Chain (3P Vendor)Identity (basic)Government IDMediumContained

Welltok

bd_e5a605be617ae396 · schema v1 · pii pii-v1

Severity

Medium

Discovered

Jul 26, 2023

Filed

Dec 15, 2023

To disclose

18 weeks

Affected

21state residents only

Linked

22 filings

Confidence

66%

Full breach record for Welltok →3 incidents on file

Welltok, Inc. issued a supplemental notice to New Hampshire residents regarding a cybersecurity incident involving the MOVEit Transfer server. An unknown actor exploited software vulnerabilities to access the server on May 30, 2023, and exfiltrated data. Welltok discovered the compromise on August 11, 2023, and notified affected individuals on December 13, 2023. Approximately 21 New Hampshire residents were impacted. The incident involved personal and government-issued identification data. Welltok engaged third-party cybersecurity specialists and provided credit monitoring services through Experian.

J jump to incidentP pin to compareR raw source

Incident timeline

undetected · 57 days

discovery → filing · 20 weeks / 142 days

May 30, 2023

Begins

Jul 26, 2023

Discovered

Dec 15, 2023

Filed

vs. sector median

+5 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_063b1deb8c7a2bff2023-12-15Verified by operator
Vermont State AGbd_69d99adc86ef4dcf2023-12-15Verified
California State AGbd_b765e398c9850ca12023-12-15Verified
Maine State AGbd_0328ea1fdab9c4592023-12-22 · +7dVerified by operator

Show 6 more filings ↓up to 161d gap

California State AGbd_5e4b7107bd1176de2023-12-22 · +7dVerified
Vermont State AGbd_8ca9e17ac4dfbe9b2023-12-22 · +7dVerified
New Hampshire State AGbd_db6e6d3e58b51e902023-12-22 · +7dVerified
California State AGbd_cf54a7692c42c7aa2024-01-08 · +24dVerified by operator
California State AGbd_d2c5cdddd25b96d92024-02-28 · +75dVerified by operator
South Carolina State AGbd_57aa66e4578bd8912024-05-24 · +161dVerified 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 13, 2023
Affected individuals: 21state-resident count only
Data types: Identity (basic)Government ID
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
Provided access to credit monitoring services for ... through Experian
Providing impacted individuals with guidance on how to better protect against identity theft and fraud
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: 18 weeks(126 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 · 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 · this page

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

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://mm.nh.gov/files/uploads/doj/remote-docs/welltok-20231215.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Dec 15, 2023
Raw hash: f2559d9841346bd2769fad49123e38b4f56cf3480b6a2a124d99a06a72534b46

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 provenancemm.nh.gov