HackingEducationEducationCustomer Data InvolvedData ExfiltratedGovernment IDIdentity (basic)HighContained

Manhasset Union Free School District

bd_76987bc7ef98df23 · schema v1 · pii pii-v1

Severity

High

Discovered

Feb 17, 2022

Filed

Apr 20, 2022

To disclose

9 weeks

Affected · nationwide

5,7093 in this filing

Linked

3 filings

Confidence

66%

Full breach record for Manhasset Union Free School District →2 incidents on file

Manhasset Union Free School District experienced an external system breach (hacking) between September 10 and 14, 2021, discovered on February 17, 2022. The incident affected 5,709 individuals, including 3 Maine residents. Personal information compromised included names and Social Security Numbers. The District provided written notification and offered one year of credit monitoring and identity theft protection services through IDX.

J jump to incidentP pin to compareR raw source

Maine clockDiscovered Feb 17, 2022 → Filed with AG Apr 20, 202262d ⏱ ME AG >30d9 weeks 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 · 160 days

discovery → filing · 9 weeks / 62 days

Sep 10, 2021

Begins

Feb 17, 2022

Discovered

Apr 20, 2022

Filed

vs. sector median

on median

This filing is one of 3 about the same incident.View merged incident

A leak claim by vicesociety about this victim predates this filing by 104 days.View originating leak claim

Linked disclosures

Why this link?

Ransomware claims (1)

Leak Sitevicesocietybd_9a250a49d19217462022-01-06 · +104dVerified by operator

Regulatory filings (1) · sorted by filing gap

New Hampshire State AGbd_be1e02cd03ad61902022-04-20Verified by operator

Name: Manhasset Union Free School District
norm: manhasset union free school district

Name: Manhasset Union Free School District
norm: manhasset union free school district
Industry: Educationllm

Discovered: Feb 17, 2022
Breach occurred: Sep 10, 2021 – Sep 14, 2021
Undetected for: 160 daysoccurrence → discovery
Materiality determined: —
Notification sent: Apr 20, 2022
Affected individuals: 5,709state + 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: External
Regulator citations: Filed data breach notice with Maine Attorney General's Office
Initial access: exploit_public_facing

During the incident: Sent written notification to affected individuals
Offered one year of credit monitoring and identity theft protection services through IDX
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 9 weeks(62 days from discovery to filing)
Compliance flags: ME AG >30d · 62dLeak >90d
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: Feb 17, 2022
→ Filed with AG: Apr 20, 2022
62d 30 days (soft) ME AG >30d

Statute	Window	Elapsed	Threshold	Status
Maine	Discovered: Feb 17, 2022 → Filed with AG: Apr 20, 2022	62d	30 days (soft)	ME AG >30d

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 2 filings · 2 states

View merged incident ↗

New Hampshire State AGApr 20 · first

Maine State AGApr 20 · first · this page

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-a1252b4f8318/22a335b8-6e1c-459e-8070-489681703282.shtml
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Apr 20, 2022
Raw hash: fea328678839ff02997af05868473d36c6ac32e09294a46691d7e9b3aa8cb65c

Linked disclosures

Ransomware claims (1)

Regulatory filings (1) · sorted by filing gap

Reporting entityManhasset Union Free School District

Victim entityManhasset Union Free School District

Incidentdiscovered Feb 17, 2022

Stated responseSent written notification to affected individuals

ComplianceME AG >30d

Extraction provenanceno artifact recorded

Source provenancewww.maine.gov