HackingEducationEducationData ExfiltratedCustomer Data InvolvedGovernment IDIdentity (basic)HighContained

School District of Elmbrook

bd_7a271ebaf508f2b0 · schema v1 · pii pii-v1

Severity

High

Discovered

Aug 30, 2022

Filed

Sep 23, 2022

To disclose

24 days

Affected · nationwide

4,3561 in this filing

Linked

7 filings

Confidence

66%

Full breach record for School District of Elmbrook →

The School District of Elmbrook (Wisconsin) experienced an external system breach (hacking) between August 23 and 27, 2022. The incident compromised the names and Social Security Numbers of 4,356 individuals, including one Maine resident. The breach was discovered on August 30, 2022. The District provided written notification on September 23, 2022, and offered 12 months of Experian credit monitoring services to affected individuals.

J jump to incidentP pin to compareR raw source

Maine clockDiscovered Aug 30, 2022 → Filed with AG Sep 23, 202224d ✓ ME AG ≤30d24 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 · 7 days

discovery → filing · 24 days

Aug 23, 2022

Begins

Aug 30, 2022

Discovered

Sep 23, 2022

Filed

vs. sector median

4 wks faster

This filing is one of 7 about the same incident.View merged incident

Linked disclosures

Why this link?

Ransomware claims (1)

Leak Sitevicesocietybd_7f2b03a8cf189ee72022-09-04 · +19dVerified by operator

Regulatory filings (5) · sorted by filing gap

Indiana State AGbd_3d648f4b42e330982022-09-23Verified by operator
Vermont State AGbd_07f8e00999ac259b2023-02-24 · +154dCandidate
Massachusetts State AGbd_f7b07cb2af127ba42023-03-16 · +174dVerified by operator
New Hampshire State AGbd_132e2b67c110056b2023-03-20 · +178dVerified

Show 1 more filing ↓up to 191d gap

Montana State AGbd_c7b6cdac2a0616dd2022-03-16 · +191dVerified by operator

Name: School District of Elmbrook
norm: school district of elmbrook

Name: School District of Elmbrook
norm: school district of elmbrook
Industry: Educationllm

Discovered: Aug 30, 2022
Breach occurred: Aug 23, 2022 – Aug 27, 2022
Undetected for: 7 daysoccurrence → discovery
Materiality determined: —
Notification sent: Sep 23, 2022
Affected individuals: 4,356state + nationwide
Data types: Government IDIdentity (basic)
Data elements: Social Security number
Attack vector: Unauthorized Access
MITRE ATT&CK: T1190 Exploit Public-Facing Application
Threat actor: ExternalFinancial
Regulator citations: Filed data breach notice with Maine Attorney General
Initial access: exploit_public_facing

During the incident: Sent written notification to affected individuals
Offered 12 months of Experian credit monitoring
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 24 days(24 days from discovery to filing)
Compliance flags: ME AG ≤30d · 24d
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: Aug 30, 2022
→ Filed with AG: Sep 23, 2022
24d 30 days ME AG ≤30d

Statute	Window	Elapsed	Threshold	Status
Maine	Discovered: Aug 30, 2022 → Filed with AG: Sep 23, 2022	24d	30 days	ME AG ≤30d

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 6 filings · 6 states

View merged incident ↗

Montana State AGMar 16 · first

Indiana State AG+191d

Maine State AG+191d · this page

Vermont State AG+345d

Massachusetts State AG+365d

New Hampshire State AG+369d

Pattern: first filing Mar 16 (MT), last Mar 20 (NH) — a 369-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-a1252b4f8318/1cefc4da-3b33-4fa4-b311-24aa93d9a5e0.shtml
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Sep 23, 2022
Raw hash: b2c837c631b2d227ce39c740dffe7eda030d6a0f5e6e332032b40be2b3e5af04

Linked disclosures

Ransomware claims (1)

Regulatory filings (5) · sorted by filing gap

Reporting entitySchool District of Elmbrook

Victim entitySchool District of Elmbrook

Incidentdiscovered Aug 30, 2022

Stated responseSent written notification to affected individuals

ComplianceME AG ≤30d

Extraction provenanceno artifact recorded

Source provenancewww.maine.gov