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Springfield Public Schools

Claimed by Interlock · listed 8 hours ago

Today
Age
since listed · data leaked

Status timeline

  1. ListedSep 15, 2026
  2. Data leakeddate unknown

At a glance

Group
Interlock
Status
Data leaked
Country
United States
Sector
Education
Listed on leak site
Sep 15, 2026

About the victim

AI dossier — public-source company profile

Springfield Public Schools is the third-largest school district in Massachusetts, serving over 23,500 students with a workforce of over 4,200 full-time employees. The district's budget exceeds $700 million and accounts for more than two-thirds of the city's total budget.

Industry
Public Education
Address
Springfield, Massachusetts, US
Employees
4200

Attack summary

Severity: critical — Confirmed exfiltration of PII at scale (23,500+ students) including sensitive education records, home addresses, and medical information. Children's data exposure constitutes regulated sensitive information under FERPA and state privacy laws.

The group claims to have exfiltrated extensive student and employee databases containing personally identifiable information (PII), including names, student numbers, enrollment status, grade levels, home addresses, phone numbers, and ethnicity data. Additional compromised data includes employee contacts, incident records, phone logs, and medical information.

critical

Data the group says was taken

AI dossier — extracted from the leak post
  • Student database records (names, student ID, grade level, enrollment status)
  • Home addresses
  • Phone numbers (student and employee)
  • Ethnicity data
  • Employee contact information
  • Incident databases
  • Phone records
  • Medical information

What the group claims

Springfield Public Schools in Springfield, Massachusetts, is the third-largest school district in the state, with over 23,500 students and over 4,200 full-time employees. The school budget accounts for more than two-thirds of the city's total budget, which is approximately $700 million. Yet, they fail to ensure student safety and do nothing to address this problem. As a result, their negligence has led to a major breach of student and employee data. Extensive student databases are now available, containing last name, first name, student number, enrollment status, grade level, home address, home phone number, and ethnicity. You also have access to more than 10,000 company contacts, incident databases, phone records, and medical information. This raises the question: where are the allocated funds going? Why aren't they keeping their students safe?

Sources

Source

Indexed 8 hours ago

This page surfaces a public ransomware disclosure indexed by Darkfield. Original posts come from the operator's own leak site; we cross-check against ransomware.live, RansomLook and RansomWatch where applicable. Share this URL freely.

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Disclosure context

About Interlock

Interlock is a recently emerged ransomware group that began operations in October 2024, primarily motivated by financial gain through extortion activities targeting organizations across multiple sectors. The group's country of origin and potential affiliations remain unclear given their recent emergence, with insufficient public documentation to determine whether they operate as an independent entity or under a Ransomware-as-a-Service model. Limited public information exists regarding their specific attack methodologies, initial access vectors, or encryption techniques, as major cybersecurity firms and law enforcement agencies have not yet published comprehensive technical analyses of their operations. Since beginning operations, Interlock has reportedly compromised approximately 100 victims, with their targeting primarily focused on organizations in English-speaking countries including the United States, Canada, United Kingdom, and Australia, as well as Italy, while demonstrating a preference for attacking education, manufacturing, healthcare, and public sector entities. The group remains active as of late 2024, though comprehensive threat intelligence profiles from established security research organizations have not yet been published due to the group's recent emergence in the threat landscape. The group has been linked to 126 public disclosures across our corpus. First observed on a leak site on October 13, 2024; most recent post September 15, 2026. The operation is currently active.

Timeline of this disclosure

  • September 15, 2026Springfield Public Schools listed by Interlock on the group's public leak site

Other recent disclosures by Interlock

Interlock has been linked to 126 public victims on Darkfield. A sample of the most recent:

See the full Interlock dossier →

Sector and geography

This disclosure adds to ransomware activity in the Education sector, which has 1,087 disclosures indexed across all operators we track. Geographically, Springfield Public Schools is reported in United States, a country with 3,165 ransomware disclosures in our corpus.

If your organisation is affected

A listing by Interlock means Springfield Public Schools appeared on a ransomware extortion site and data attributed to it has been published. If this is your organisation, or a supplier you depend on, the priority is to confirm the intrusion and contain it before the window to act closes.

  • Engage your incident-response team and preserve forensic evidence before remediating — do not wipe affected systems first.
  • Force a password reset and revoke active sessions for exposed accounts; rotate any credentials, API keys or certificates that may have been in the stolen data.
  • Assess regulatory notification duties (GDPR, NIS2, sector regulators) — many carry a 72-hour reporting clock from awareness.
  • Report the incident to your national CERT, CISA (United States), as required for your jurisdiction.
  • Monitor for the data appearing on Interlock's leak site and across paste and breach channels, and brief downstream partners who may be exposed through you.

How we know this. Darkfield monitors public ransomware leak sites continuously, archiving every new disclosure and the data later released against the victim. Each entry on this page is sourced from the operator's own publication and cross-checked against complementary OSINT feeds (RansomLook, ransomware.live, RansomWatch). We do not collect or host stolen data — only the metadata, timestamps and screenshots needed to make the public disclosure searchable and accountable. Records here are corrected when the original post is edited, retracted, or merged with another disclosure.