HackingEducationEducationCustomer Data InvolvedEmployee Data InvolvedGovernment IDPIIEducationHighContained

Springfield Public Schools

bd_aa4b1d7872e87ba9 · schema v1 · pii pii-v2

Severity

High

Discovered

Aug 1, 2026

Filed

Sep 1, 2026

To disclose

—

Affected

10,000state residents only

Linked

3 records

Confidence

66%

Full breach record for Springfield Public Schools →3 incidents on file

Springfield Public Schools notified residents that personal information, including social security numbers, was accessed by an unauthorized individual in late August and/or early September 2026. The district restored offline systems, recalibrated security tools, and engaged law enforcement. Affected individuals are offered 24 months of complimentary credit monitoring.

J jump to incidentP pin to compareR raw source

Incident timeline

Aug 1, 2026

Begins

Aug 1, 2026

Discovered

Sep 1, 2026

Filed

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

Linked disclosures

Why this link?

Ransomware claims (1)

Leak Siteinterlockbd_2c0739f61d9a4c682026-09-15 · +14dCandidate

Regulatory filings (1) · sorted by filing gap

New Hampshire State AGbd_994bfbeb2739386c2026-10-13 · +42dCandidate

Name: Springfield Public Schools
norm: springfield public schools
Domain: springfieldpublicschools.com

Name: Springfield Public Schools
norm: springfield public schools
Domain: springfieldpublicschools.com
Industry: Educationllm

Discovered: Aug 1, 2026
Breach occurred: Aug 1, 2026 – Sep 30, 2026
Undetected for: 0 daysoccurrence → discovery
Materiality determined: —
Notification sent: —
Affected individuals: 10,000state-resident count only
Data types: Government IDPIIEducation
Attack vector: Unauthorized Access
MITRE ATT&CK: T1078 Valid Accounts
Threat actor: External
Regulator citations: Working with law enforcement to investigate the incident

During the incident: Restoring systems that were taken offline
Recalibrating scanning tools to detect previously undetectable intrusions
Working with law enforcement to investigate the incident
Taking other measures to improve data security
Offering twenty-four months of complimentary credit monitoring
Changes made: Recalibrating scanning tools to detect previously undetectable intrusions
Taking other measures to improve data security
Source: Quoted from the filing itself, not independently verified.

Compliance flags: — (clock not assessable for this source)

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 2 filings · 2 states

View merged incident ↗

Massachusetts State AGSep 1 · first · this page

New Hampshire State AG+42d

Pattern: first filing Sep 1 (MA), last Oct 13 (NH) — a 42-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.mass.gov/doc/2026-1679-springfield-public-schools/download
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Sep 1, 2026
Raw hash: 195e2b0aca95e9f4f16f0ebc7c2eab5700d247a9229b0a9cdb59fb25cbbe1ca2

Linked disclosures

Ransomware claims (1)

Regulatory filings (1) · sorted by filing gap

Reporting entitySpringfield Public Schools

Victim entitySpringfield Public Schools

Incidentdiscovered Aug 1, 2026

Stated responseRestoring systems that were taken offline

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenancewww.mass.gov