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Springfield Public Schools Ransomware Attack

springfieldpublicschools.comRansomed

interlockGroup

United StatesCountry

Sep 15, 2026Discovered

Overview

View group profile

Domain

springfieldpublicschools.com

Industry

Education

Country

United States

Discovered

22 days ago

Attack date

Sep 15, 2026

Confidence

90%

Severity

Medium

Status

Claimed

Threat group

interlock

Total victims

First seen

Oct 2025

Last seen

Oct 2026

Group status

active

Sophistication

Impact score

Threat level

4.9/10

Aggressiveness8/10

Lethality0.9/10

Criticality5.9/10

Status breakdown

Data Leaked18.0%11

Claimed

this victim

82.0%50

Targeted sectors

Education Financial Services Government & Defense Healthcare Hospitality Manufacturing Other Professional Services Retail & E-Commerce Technology Transportation

Victim's position within group

Industry

Education

Known target sector

Country

United States

Frequently targeted country

Other victims

View all (61)

Same group · interlock

Group activity

Monthly attacks · interlock

total · avg 4.7/mo