HackingHealthcareTechnologyHealthcareVulnerability ExploitData ExfiltratedTargetedIdentity (basic)Government IDPHIPIIHealth (basic)HighContained

NASCO

bd_f61696cdfa81c4df · schema v1 · pii pii-v1

Severity

High

Discovered

Jul 12, 2023

Filed

Oct 27, 2023

To disclose

15 weeks

Affected · nationwide

12,9867,100 in this filing

Linked

17 records

Confidence

71%

Full breach record for NASCO →3 incidents on file

NASCO, a benefits administration provider, reported a supplemental breach to Washington AG regarding a MOVEit Transfer vulnerability exploited on May 30, 2023. NASCO discovered the incident on July 12, 2023. The breach affected personal information of approximately 12,986 individuals nationwide, including 7,100 Washington residents. NASCO engaged forensic investigators, notified law enforcement, decommissioned the affected server, and offered 24 months of credit monitoring.

J jump to incidentP pin to compareR raw source

Washington clock✗ WA AG >90d15 weeks discovery → filing

⚠ AG web formThe discovery date came from the AG web-form field, which is systematically later than the detection date stated in the letter. Treat the clock as indicative.

Incident timeline

undetected · 43 days

discovery → filing · 15 weeks / 107 days

May 30, 2023

Begins

Jul 12, 2023

Discovered

Oct 27, 2023

Filed

vs. sector median

+6 wks slower

This filing is one of 17 records 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

Vermont State AGbd_a10a2ec406bd2fd72023-10-27Verified by operator
Oregon State AGbd_aa31f139773717df2023-10-27Verified by operator
California State AGbd_da6299b7281a604f2023-10-27Verified by operator
Montana State AGbd_ffb048d919d7530a2023-10-27Verified by operator

Show 6 more filings ↓up to 75d gap

Maine State AGbd_27541ee9c5b7e6e72023-10-28 · +1dVerified by operator
South Carolina State AGbd_1a92f137101f29bd2023-10-30 · +3dVerified by operator
New Hampshire State AGbd_70967d52d87f8c3a2023-11-03 · +7dVerified by operator
Vermont State AGbd_d55aa1ea3b2002af2024-01-08 · +73dVerified by operator
Maine State AGbd_3b3b709830689a452024-01-10 · +75dVerified by operator
California State AGbd_5dcd476cd7204fbf2024-01-10 · +75dVerified by operator

Showing first 10 of 16 linked disclosures.

Name: NASCO
norm: nasco
Domain: nasco.com

Name: NASCO
norm: nasco
Domain: nasco.com
Industry: HealthcarellmTechnologyllm

Discovered: Jul 12, 2023
Breach occurred: May 30, 2023
Undetected for: 43 daysoccurrence → discovery
Materiality determined: —
Notification sent: Oct 27, 2023
Affected individuals: 12,986state + nationwide
Data types: PIIIdentity (basic)
Data elements: NameSocial Security numberDate of birthHealth insurance IDMedical information
WA-stated cause: Cyberattack
WA-stated duration: lifecycle 1-99dexposure 0d
WA-stated discovery: Found after the fact
Attack vector: Unauthorized Access
MITRE ATT&CK: T1190 Exploit Public-Facing ApplicationT1041 Exfiltration Over C2 Channel
Threat actor: ExternalFinancial
Regulator citations: Notified Washington State Office of the Attorney General
Initial access: exploit_public_facing

During the incident: Took steps to secure its systems
Launched an investigation with the support of a leading cybersecurity firm
Notified law enforcement authorities
Decommissioned the NASCO MOVEit server
Stopped using MOVEit
Offered 24 months of identity monitoring services
Changes made: Implemented and are continuing to implement additional procedures to further strengthen the security of our IT system environments
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 15 weeks(107 days from discovery to filing)
Compliance flags: WA AG >90d
Discovery-date grounding: AG web formThe discovery date came from the AG web-form field, which is systematically later than the detection date stated in the letter. Treat the clock as indicative.

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 11 filings · 8 states

View merged incident ↗

Vermont State AGOct 27 · first

Oregon State AGOct 27 · first

California State AGOct 27 · first

Montana State AGOct 27 · first

Washington State AGOct 27 · first · this page

Maine State AG+1d

South Carolina State AG+3d

New Hampshire State AG+7d

Vermont State AG+73d

Maine State AG+75d

California State AG+75d

Pattern: first filing Oct 27 (VT), last Jan 10 (CA) — a 75-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 16 — 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://agportal-s3bucket.s3.amazonaws.com/databreach/BreachA26874.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Oct 27, 2023
Raw hash: cfad5e665a5deb160858dc59e6b5a110d02fb3d8c8dd1d492ea7c076e6cbb2bd

Linked disclosures

Regulatory filings (10) · sorted by filing gap

Reporting entityNASCO

Victim entityNASCO

Incidentdiscovered Jul 12, 2023

Stated responseTook steps to secure its systems

ComplianceWA AG >90d

Extraction provenanceno artifact recorded

Source provenanceagportal-s3bucket.s3.amazonaws.com