HackingEducationEducationSupply Chain (3P Vendor)Customer Data InvolvedIdentity (basic)Government IDMediumResolved

Cambridge School of Weston

bd_be33894dcd6dbea5 · schema v1 · pii pii-v1

Severity

Medium

Discovered

Nov 9, 2020

Filed

Nov 25, 2020

To disclose

16 days

Affected · nationwide

5636 in this filing

Linked

3 filings

Confidence

66%

Full breach record for Cambridge School of Weston →

Cambridge School of Weston reported a third-party vendor breach involving Blackbaud. The incident occurred on February 7, 2020, and was discovered on November 9, 2020. Personal information including names and Social Security Numbers was compromised for 563 individuals total, including 6 Maine residents. The school provided 24 months of credit monitoring via CyberScout.

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Maine clockDiscovered Nov 9, 2020 → Filed with AG Nov 25, 202016d ✓ ME AG ≤30d16 days 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 · 276 days

discovery → filing · 16 days

Feb 7, 2020

Begins

Nov 9, 2020

Discovered

Nov 25, 2020

Filed

vs. sector median

8 wks faster

This filing is one of 3 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 (2) · sorted by filing gap

Massachusetts State AGbd_a419708b97b9333b2020-11-25Verified
New Hampshire State AGbd_e3420dba26490dc02020-12-01 · +6dVerified

Name: Cambridge School of Weston
norm: cambridge school of weston

Name: Cambridge School of Weston
norm: cambridge school of weston
Industry: Educationllm

Discovered: Nov 9, 2020
Breach occurred: Feb 7, 2020
Undetected for: 276 daysoccurrence → discovery
Materiality determined: —
Notification sent: Nov 25, 2020
Affected individuals: 563state + nationwide
Data types: Identity (basic)Government ID
Data elements: Social Security number
Attack vector: Third-Party / Supply Chain
MITRE ATT&CK: T1195 Supply Chain Compromise
Threat actor: External
Regulator citations: Filed data breach notice with the Maine Attorney General
Third party: via Blackbaud
Initial access: supply_chain

During the incident: Offered 24 months of credit monitoring and fraud assistance through CyberScout
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 16 days(16 days from discovery to filing)
Compliance flags: ME AG ≤30d · 16d
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.
Clock breakdown: Statute Window Elapsed Threshold Status
Maine
Discovered: Nov 9, 2020
→ Filed with AG: Nov 25, 2020
16d 30 days ME AG ≤30d

Statute	Window	Elapsed	Threshold	Status
Maine	Discovered: Nov 9, 2020 → Filed with AG: Nov 25, 2020	16d	30 days	ME AG ≤30d

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 3 filings · 3 states

View merged incident ↗

Massachusetts State AGNov 25 · first

Maine State AGNov 25 · first · this page

New Hampshire State AG+6d

Pattern: first filing Nov 25 (MA), last Dec 1 (NH) — 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.

Source URL: https://www.maine.gov/agviewer/content/ag/985235c7-cb95-4be2-8792-a1252b4f8318/c557b782-b560-4aad-94f9-5b79a81a9024.shtml
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Nov 25, 2020
Raw hash: 2a17be6562f644b8a84c26ca649dd9521567ab7cf43746c98dfd9ec5a22031fb

Linked disclosures

Regulatory filings (2) · sorted by filing gap

Reporting entityCambridge School of Weston

Victim entityCambridge School of Weston

Incidentdiscovered Nov 9, 2020

Stated responseOffered 24 months of credit monitoring and fraud assistance through CyberScout

ComplianceME AG ≤30d

Extraction provenanceno artifact recorded

Source provenancewww.maine.gov