DisclosureLens
HackingEducationEducationSupply Chain (3P Vendor)Customer Data InvolvedData ExfiltratedIdentity (basic)Government IDHighContained

THE LATIN SCHOOL OF CHICAGO

bd_cd2f7d9961961e9f · schema v1 · pii pii-v1

Severity

High

Discovered

Sep 29, 2020

Filed

Oct 24, 2020

To disclose

25 days

Affected · nationwide

4,4743 in this filing

Linked

4 filings

Confidence

50%
Full breach record for THE LATIN SCHOOL OF CHICAGO →4 incidents on file

The Latin School of Chicago reported a data breach to the Maine Attorney General after a third-party vendor, Blackbaud, was impacted by an external system breach. The incident, which occurred on May 1, 2020, and was discovered on September 29, 2020, affected 3 Maine residents. The compromised information included names and Social Security numbers. The school offered 24 months of credit monitoring and identity theft restoration services through Experian and CyberScout to those affected.

Maine clockDiscovered Sep 29, 2020 → Filed with AG Oct 24, 202025d ✓ ME AG ≤30d25 days discovery → filing
⚠ unattributedNo provenance was recorded for this discovery date and it matches no other date on the record. It may be correct, but it is not independently grounded.

Incident timeline

undetected · 151 days
discovery → filing · 25 days

May 1, 2020

Begins

Sep 29, 2020

Discovered

Oct 24, 2020

Filed

This filing is one of 4 filings about the same incident.View merged incident
Part of BLACKBAUD, INC. supply-chain incident (2020) — a supply-chain cascade affecting multiple organizations.View cascade →

Linked disclosures

Why this link?

Regulatory filings (3) · sorted by filing gap

Filing propagation · 4 filings · 4 states

View merged incident ↗
Maine State AGOct 24 · first · this page
New Hampshire State AG+3d
Massachusetts State AG+4d
Montana State AG+6d

Pattern: first filing Oct 24 (ME), last Oct 30 (MT) — a 6-day rolling notification. Rolling spreads often mean counsel is filing as thresholds trip per state. Why this link?

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.