Skip to main content
Darkfield

Ransomware victim disclosure

← All victims

Study Gate

Claimed by Killsecurity · listed 10 months ago

9m
Age
since listed · data leaked

Status timeline

  1. ListedSep 25, 2025
  2. Data leakeddate unknown

At a glance

Group
Killsecurity
Status
Data leaked
Country
United States
Sector
Education
Listed on leak site
Sep 25, 2025

About the victim

AI dossier — public-source company profile

Study Gate (studygate.com) is a US-based online tutoring and academic assistance platform that connects students with tutors and subject-matter experts. The platform serves students across a range of academic disciplines and levels. Specific operational scale and founding details are not publicly confirmed from available sources.

Industry
Online Education & Tutoring Services
Employees
11-50

Attack summary

Severity: medium — Status is 'data_published' indicating some data was released, but the leak post contains no detail on scope, volume, or nature of the data. The platform likely holds student PII which elevates concern, but without confirmed proof or data inventory the severity remains medium rather than critical.

KillSecurity claims to have attacked Study Gate with data published as part of the disclosure, though the leak post provided no specific details on whether encryption, exfiltration, or both occurred, and no data volume or file inventory was described.

medium

Data the group says was taken

AI dossier — extracted from the leak post
  • Student personal information
  • Tutor profiles and credentials
  • Account credentials
  • Payment or billing records
  • Academic content or submissions

What the group claims

N/A

Sources

Source

Indexed 10 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.

Is this your supplier? Your competitor? You?

Pro plans monitor your domain, corporate emails, and crypto wallets across every new ransomware leak-site post, breach dump and Telegram callout — alerts within 5 minutes.

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

  • September 25, 2025Study Gate 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, Study Gate 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 Study Gate 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.