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grade results

Claimed by Killsecurity · listed 7 months ago

6m
Age
since listed · data leaked

Status timeline

  1. ListedDec 24, 2025
  2. Data leakeddate unknown

At a glance

Group
Killsecurity
Status
Data leaked
Country
United States
Sector
Education
Listed on leak site
Dec 24, 2025

About the victim

AI dossier — public-source company profile

Grade Results is a U.S.-based education technology company providing an Assessment Management System for K-12 school districts. Their platform covers benchmark assessments, curriculum and course management, student information systems (SIS), adaptive and third-party assessments, virtual classrooms, and performance dashboards. They serve districts seeking data-driven instruction across core and elective subjects for grades K-12.

Industry
K-12 Education Technology & Assessment Management

Attack summary

Severity: critical — Grade Results handles sensitive student PII at scale, including minors' academic records, IEP/ILP data, transcripts, and performance dashboards for K-12 districts. Data publication by the threat actor involving a platform processing regulated student data (FERPA-covered) at district scale constitutes a critical disclosure.

Killsecurity claims to have compromised Grade Results and has published data (disclosed status: data_published), though the leak post itself contains minimal detail and no stated ransom or explicit data size. The post indicates at least one disclosure tranche.

critical

Data the group says was taken

AI dossier — extracted from the leak post
  • Student performance data
  • Student information records (SIS)
  • Curriculum and course materials
  • Attendance and gradebook records
  • IEP/ILP learning goal data
  • Report cards and transcripts
  • User account information
  • Assessment results

What the group claims

Price ??? Disclosures 0/1

Sources

Source

Indexed 7 months 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 Killsecurity

Killsecurity is a relatively new ransomware group that emerged in March 2024, operating with apparent financial motivations and demonstrating rapid expansion in their victim targeting. The group's origin and affiliations remain unclear due to limited public documentation from major threat intelligence sources, though their global targeting pattern suggests a sophisticated operation. Based on available victim data, Killsecurity has compromised 276 organizations primarily across the United States, India, United Kingdom, Brazil, and Belgium, with a particular focus on healthcare, technology, business services, and financial sectors. The group's attack methodology, encryption techniques, and specific tools remain undocumented in public threat intelligence reports from established security firms. Notable campaigns and high-profile victims have not been extensively documented by major cybersecurity organizations or law enforcement agencies, likely due to the group's recent emergence. Killsecurity appears to remain active as of current reporting, though comprehensive analysis of their operations is limited by the lack of detailed technical documentation from reputable threat intelligence sources. The group has been linked to 277 public disclosures across our corpus. First observed on a leak site on March 21, 2024; most recent post May 15, 2026. The operation is currently active.

Timeline of this disclosure

  • December 24, 2025grade results listed by Killsecurityon the group's public leak site

Other recent disclosures by Killsecurity

Killsecurity has been linked to 277 public victims on Darkfield. A sample of the most recent:

See the full Killsecurity dossier →

Sector and geography

This disclosure adds to ransomware activity in the Education sector, which has 1,082 disclosures indexed across all operators we track. Geographically, grade results is reported in United States, a country with 11,033 ransomware disclosures in our corpus.

If your organisation is affected

A listing by Killsecurity means grade results 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 Killsecurity'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.