HackingTechnologyInformationStolen CredentialsSupply Chain (3P Vendor)Data ExfiltratedCustomer Data InvolvedIdentity (basic)Government IDHighContained

National Student Clearinghouse

bd_116e7610d8f2a768 · schema v1 · pii pii-v1

Severity

High

Discovered

Jun 20, 2023

Filed

Sep 21, 2023

To disclose

13 weeks

Affected

5,207state residents only

Linked

16 records

Confidence

69%

Full breach record for National Student Clearinghouse →

National Student Clearinghouse filed a supplemental breach notification with the Washington State AG regarding a third-party supply chain compromise involving Progress Software's MOVEit Transfer solution. Unauthorized access occurred on or around May 30, 2023, and was discovered on June 20, 2023. The incident affected 5,207 Washington residents, exposing names, SSNs, and DOBs. The Clearinghouse patched the software, engaged forensic experts, and offered two years of identity monitoring.

J jump to incidentP pin to compareR raw source

Washington clock✗ WA AG >90d13 weeks discovery → filing

Incident timeline

undetected · 21 days

discovery → filing · 13 weeks / 93 days

May 30, 2023

Begins

Jun 20, 2023

Discovered

Sep 21, 2023

Filed

vs. sector median

+2 wks slower

This filing is one of 16 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 →

A leak claim by cl0p about this victim was first seen 99 days before this filing.View originating leak claim

Linked disclosures

Why this link?

Regulatory filings (10) · sorted by filing gap

California State AGbd_3c0bc77e712651d42023-09-21Verified by operator
Oregon State AGbd_f56f2ba4dc3877702023-09-21Verified by operator
South Carolina State AGbd_ff3f3f8d31ce3bb42023-09-22 · +1dVerified by operator
New Hampshire State AGbd_e6b6aa0a9330aac62023-09-18 · +3dVerified by operator

Show 6 more filings ↓up to 88d gap

Maine State AGbd_2a4b3c8c4d73dde12023-08-31 · +21dVerified by operator
Massachusetts State AGbd_31d33972c1e551702023-08-31 · +21dVerified by operator
Montana State AGbd_b407d20f148d36942023-08-31 · +21dVerified by operator
California State AGbd_c5625c0a94dc7f2e2023-12-12 · +82dVerified
Maine State AGbd_8ac0fc71a5cf7b942023-12-15 · +85dCandidate
New Hampshire State AGbd_ef6d774a2bb958e32023-12-18 · +88dVerified by operator

Showing first 10 of 15 linked disclosures.

Name: National Student Clearinghouse
norm: national student clearinghouse
Domain: studentclearinghouse.org

Name: National Student Clearinghouse
norm: national student clearinghouse
Domain: studentclearinghouse.org
Industry: Technologyllm

Discovered: Jun 20, 2023
Breach occurred: May 30, 2023
Undetected for: 21 daysoccurrence → discovery
Materiality determined: —
Notification sent: Sep 12, 2023
Affected individuals: 5,207state-resident count only
Data types: Identity (basic)Government ID
Attack vector: Third-Party / Supply Chain
MITRE ATT&CK: T1195 Supply Chain CompromiseT1041 Exfiltration Over C2 Channel
Threat actor: ExternalFinancial
Regulator citations: Notified Washington State Office of the Attorney General
Initial access: supply_chain

During the incident: Initiated an investigation with the support of leading cybersecurity experts
Coordinated with law enforcement
Implemented patches to the MOVEit software
Put in place additional monitoring measures
Offered identity monitoring services to you for two years at no cost
Changes made: Implemented patches to the MOVEit software pursuant to Progress Software’s instructions
Put in place additional monitoring measures to further protect our systems and your data
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 13 weeks(93 days from discovery to filing)
Compliance flags: WA AG >90dLeak >90d
Discovery-date grounding: letter-groundedThe discovery date is the detection date narrated in the notification letter — the defensible tier.

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 11 filings · 8 states

View merged incident ↗

Maine State AGAug 31 · first

Massachusetts State AGAug 31 · first

Montana State AGAug 31 · first

New Hampshire State AG+18d

California State AG+21d

Oregon State AG+21d

Washington State AG+21d · this page

South Carolina State AG+22d

California State AG+103d

Maine State AG+106d

New Hampshire State AG+109d

Pattern: first filing Aug 31 (ME), last Dec 18 (NH) — a 109-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 15 — 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/BreachA26569.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Sep 21, 2023
Raw hash: 08e8dbc1a0973cdd9cae285b7a55968a6bedcb47397edde38ea1cad94487983a

Linked disclosures

Regulatory filings (10) · sorted by filing gap

Reporting entityNational Student Clearinghouse

Victim entityNational Student Clearinghouse

Incidentdiscovered Jun 20, 2023

Stated responseInitiated an investigation with the support of leading cybersecurity experts

ComplianceWA AG >90d

Extraction provenanceno artifact recorded

Source provenanceagportal-s3bucket.s3.amazonaws.com