MalwareEducationEducationRansomwareData EncryptedSupply Chain (3P Vendor)Customer Data InvolvedGovernment IDIdentity (basic)Financial accountMediumContained

Archmere Academy

bd_ccd6f92a4c03539d · schema v1 · pii pii-v1

Severity

Medium

Discovered

Sep 29, 2020

Filed

Oct 30, 2020

To disclose

4 weeks

Affected · nationwide

9712 in this filing

Linked

4 filings

Confidence

66%

Full breach record for Archmere Academy →

Archmere Academy, an educational institution in Delaware, reported a ransomware attack on a third-party service provider on May 20, 2020. The breach was discovered on September 29, 2020, affecting 971 individuals, including 2 Maine residents. Compromised data included names, Social Security numbers, and financial account numbers. The Academy provided 24 months of credit monitoring via CyberScout/Blackbaud and notified the Maine Attorney General.

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Maine clockDiscovered Sep 29, 2020 → Filed with AG Oct 30, 202031d ⏱ ME AG >30d4 weeks 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 · 132 days

discovery → filing · 4 weeks / 31 days

May 20, 2020

Begins

Sep 29, 2020

Discovered

Oct 30, 2020

Filed

vs. sector median

6 wks faster

This filing is one of 4 about the same incident.View merged incident

Linked disclosures

Why this link?

Regulatory filings (3) · sorted by filing gap

Delaware State AGbd_b77e156a126c169f2020-10-30Verified
Massachusetts State AGbd_80392379d25e95ad2020-11-03 · +4dVerified
Maine State AGbd_f021f046eac358c42020-11-30 · +31dVerified

Name: Archmere Academy
norm: archmere academy

Name: Archmere Academy
norm: archmere academy
Industry: Educationllm

Discovered: Sep 29, 2020
Breach occurred: May 20, 2020
Undetected for: 132 daysoccurrence → discovery
Materiality determined: —
Notification sent: Oct 30, 2020
Affected individuals: 971state + nationwide
Data types: Government IDIdentity (basic)Financial account
Data elements: Financial account numberSocial Security number
Attack vector: Ransomware
MITRE ATT&CK: T1486 Data Encrypted for ImpactT1195 Supply Chain Compromise
Threat actor: ExternalFinancial
Regulator citations: Filed data breach notice with Maine Attorney General
Initial access: supply_chain

During the incident: Sent written notification to affected individuals
Offered 24 months of identity theft protection services provided by CyberScout through Blackbaud
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 4 weeks(31 days from discovery to filing)
Compliance flags: ME AG >30d · 31d
Discovery-date grounding: 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.
Clock breakdown: Statute Window Elapsed Threshold Status
Maine
Discovered: Sep 29, 2020
→ Filed with AG: Oct 30, 2020
31d 30 days (soft) ME AG >30d

Statute	Window	Elapsed	Threshold	Status
Maine	Discovered: Sep 29, 2020 → Filed with AG: Oct 30, 2020	31d	30 days (soft)	ME AG >30d

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 4 filings · 3 states

View merged incident ↗

Delaware State AGOct 30 · first

Maine State AGOct 30 · first · this page

Massachusetts State AG+4d

Maine State AG+31d

Pattern: first filing Oct 30 (DE), last Nov 30 (ME) — a 31-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-a1252b4f8318/21127668-3134-4d43-95dc-c695a27d9990.shtml
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Oct 30, 2020
Raw hash: a2a7d8567ba5b5ae60a5c4e0bf06ec2295111006911a5ef92d4b0760db8b96ea

Linked disclosures

Regulatory filings (3) · sorted by filing gap

Reporting entityArchmere Academy

Victim entityArchmere Academy

Incidentdiscovered Sep 29, 2020

Stated responseSent written notification to affected individuals

ComplianceME AG >30d

Extraction provenanceno artifact recorded

Source provenancewww.maine.gov