DisclosureLens
HackingEducationTechnologyEducationVulnerability ExploitSupply Chain (3P Vendor)Data ExfiltratedCustomer Data InvolvedIdentity (basic)Government IDEducationMediumContained

National Student Clearinghouse

bd_3c0bc77e712651d4 · schema v1 · pii pii-v1

Severity

Medium

Discovered

May 31, 2023

Filed

Sep 21, 2023

To disclose

16 weeks

Affected

Not disclosed

Linked

15 filings

Confidence

65%
Full breach record for National Student Clearinghouse2 incidents on file

National Student Clearinghouse notified individuals of a data breach involving its third-party provider, Progress Software, and its MOVEit Transfer solution. An unauthorized party obtained files containing personal information (name, DOB, SSN, student records) on or around May 30, 2023. The Clearinghouse was informed on May 31, 2023, and confirmed exfiltration on June 20, 2023. The organization engaged cybersecurity experts, coordinated with law enforcement, patched the software, and offered two years of identity monitoring.

Leak gap clock Leak >90d16 weeks discovery → filing

Incident timeline

undetected · 1 days
discovery → filing · 16 weeks / 113 days

May 30, 2023

Begins

May 31, 2023

Discovered

Sep 21, 2023

Filed

vs. sector median

+8 wks slower

This filing is one of 15 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 predates this filing by 99 days.View originating leak claim

Linked disclosures

Why this link?

Regulatory filings (10) · sorted by filing gap

Show 6 more filingsup to 88d gap

Showing first 10 of 14 linked disclosures.

Filing propagation · 11 filings · 8 states

View merged incident ↗

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 14 — 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.