AccidentalEducationEducationMisconfigurationSupply Chain (3P Vendor)Customer Data InvolvedIdentity (basic)Government IDMediumContained

Cathedral High School

bd_9fa799992494623b · schema v1 · pii pii-v1

Severity

Medium

Discovered

May 1, 2020

Filed

Dec 6, 2020

To disclose

31 weeks

Affected

Not disclosed

Linked

2 filings

Confidence

64%

Full breach record for Cathedral High School →

Cathedral Catholic High School notified affected individuals of a data incident involving a third-party vendor, Blackbaud Inc. Legacy backup files containing names, addresses, phone numbers, and Social Security or Tax Identification numbers were exposed due to a failure to destroy or encrypt data after migration. Blackbaud detected the incident in May 2020. The school is offering 24 months of credit monitoring.

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California clockDiscovered May 1, 2020 → Notified Nov 30, 2020213d ✗ CA 60-day late31 weeks discovery → filing

Incident timeline

undetected · 71 days

discovery → filing · 31 weeks / 219 days

Feb 20, 2020

Begins

May 1, 2020

Discovered

Dec 6, 2020

Filed

vs. sector median

+23 wks slower

This filing is one of 2 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 (1) · sorted by filing gap

California State AGbd_88ccf408a93fdd4c2021-01-22 · +47dCandidate

Name: Cathedral Catholic High School
norm: cathedral catholic high school

Name: Cathedral High School
norm: cathedral high school
Domain: cathedralhs.org
Industry: Educationllm

Discovered: May 1, 2020
Breach occurred: Feb 20, 2020 – May 20, 2020
Undetected for: 71 daysoccurrence → discovery
Materiality determined: —
Notification sent: Nov 30, 2020
Affected individuals: Not disclosed
Data types: Identity (basic)Government ID
Data elements: Social Security number
Attack vector: Third-Party / Supply Chain
Third party: via Blackbaud Inc.

During the incident: Offering free credit monitoring and fraud assistance services for 24 months
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 31 weeks(219 days from discovery to filing)
Compliance flags: CA 60-day late · 213d
Discovery-date grounding: letter-groundedThe discovery date is the detection date narrated in the notification letter — the defensible tier.
Clock breakdown: Statute Window Elapsed Threshold Status
California
Discovered: May 1, 2020
→ Notified: Nov 30, 2020
213d 60 days (analyst band, pre-2026 discoveries) CA 60-day late

Statute	Window	Elapsed	Threshold	Status
California	Discovered: May 1, 2020 → Notified: Nov 30, 2020	213d	60 days (analyst band, pre-2026 discoveries)	CA 60-day late

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 2 filings

View merged incident ↗

California State AGDec 6 · first · this page

California State AG+47d

Pattern: first filing Dec 6 (CA), last Jan 22 (CA) — a 47-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.

Source URL: https://oag.ca.gov/ecrime/databreach/reports/sb24-196814
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Dec 6, 2020
Raw hash: 93d66d194027b7388cf0ebc46295184b4bad5558315e9e16934aded9f0746db1

Linked disclosures

Regulatory filings (1) · sorted by filing gap

Reporting entityCathedral Catholic High School

Victim entityCathedral High School

Incidentdiscovered May 1, 2020

Stated responseOffering free credit monitoring and fraud assistance services for 24 months

ComplianceCA 60-day late

Extraction provenanceno artifact recorded

Source provenanceoag.ca.gov