HackingEducationEducationCustomer Data InvolvedPIIIdentity (basic)Government IDMediumContained

Hannah Senesh Community Day School

bd_53c879979dfe1fb0 · schema v1 · pii pii-v1

Severity

Medium

Discovered

Feb 5, 2026

Filed

Mar 14, 2026

To disclose

5 weeks

Affected

Not disclosed

Confidence

65%

Hannah Senesh Community Day School detected and stopped a network compromise on February 5, 2026. The school engaged third-party forensic experts and notified law enforcement. Personal information, potentially including Social Security numbers, may have been compromised. The school is offering complimentary identity monitoring services through Epiq - Privacy Solutions ID.

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Massachusetts clock⏱ MA AG >30d5 weeks discovery → filing

Incident timeline

discovery → filing · 5 weeks / 37 days

Feb 5, 2026

Discovered

Mar 14, 2026

Filed

vs. sector median

3 wks faster

Tracked as a single-filing incident — the only disclosure on record for this event so far.ConfirmedView incident

Name: Hannah Senesh Community Day School
norm: hannah senesh community day school
Domain: hannahsenesh.org

Name: Hannah Senesh Community Day School
norm: hannah senesh community day school
Domain: hannahsenesh.org
Industry: Educationllm

Discovered: Feb 5, 2026
Materiality determined: —
Notification sent: —
Affected individuals: Not disclosed
Data types: PIIIdentity (basic)Government ID
Data elements: Social Security numberDate of birth
Attack vector: Unknown
Threat actor: External

During the incident: Secured and remediated the compromise
Engaged additional third-party experts
Commenced an investigation
Notified law enforcement regarding this incident
Secured the services of Epiq - Privacy Solutions ID to provide complimentary identity monitoring
Changes made: Continuously enhancing systems’ security to prevent a similar event from occurring in the future
Focused on continuous awareness training and assessment of our data security
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 5 weeks(37 days from discovery to filing)
Compliance flags: MA AG >30d
Discovery-date grounding: letter-groundedThe discovery date is the detection date narrated in the notification letter — the defensible tier.

Status: No extraction artifact recorded for this disclosure.

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.mass.gov/doc/2026-397-hannah-senesh-community-day-school/download
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Mar 14, 2026
Raw hash: 2baf04506313d12390bdc35d2375f7ca304cd7bb6688e25d09ca543d4fd490f5

Reporting entityHannah Senesh Community Day School

Victim entityHannah Senesh Community Day School

Incidentdiscovered Feb 5, 2026

Stated responseSecured and remediated the compromise

ComplianceMA AG >30d

Extraction provenanceno artifact recorded

Source provenancewww.mass.gov